How to Design and Evaluate Research in Education E I G H T H E D I T I O N Jack R. Fraenkel San Francisco State University Norman E. Wallen San Francisco State University Helen H. Hyun San Francisco State University TM

iii ABOUT THE AUTHORS Jack R. Fraenkel is currently Professor of Interdisciplinary Studies in Education, and previously Director of the Research and Development Center, College of Education, San Francisco State University. He received his Ph.D. from Stanford University and has taught courses in research methodology for more than 30 years. In 1997, he received the James A. Michener prize in writing for his writings about the social studies and the social sciences. His current work centers on advising and assisting faculty and students in generating and developing research endeavors. Norman E. Wallen is Professor Emeritus of Interdisciplinary S tudies in Education at San Francisco State University, where he taught from 1966 to 1992. An experienced researcher, he received his Ph.D. from Syracuse University and taught courses in statistics and research design to master�s and doctoral students for many years. He is a former member of the City Council of Flagstaff, Arizona, and the Executive Committee, Grand Canyon Chapter of the Sierra Club. Helen H. Hyun is currently Assistant Professor of Interdisciplinary Studies in Education at San Francisco State University. She received her Ed.D. from Harvard University and has taught courses in research design and methodology to master�s and doctoral students at both San Francisco State and the University of California at Berkeley. Her teaching and research interests include higher education policy, mixed methods research, and equity issues in education. To Marge, Lina, and Jeff for all their support

iv CONTENTS IN BRIEF Preface xix P A R T 1 Introduction to Research 1 1 The Nature of Research 2 P A R T 2 The Basics of Educational Research 25 2 The Research Problem 26 3 Locating and Reviewing the Literature 37 4 Ethics and Research 60 5 Variables and Hypotheses 75 6 Sampling 90 7 Instrumentation 110 8 Validity and Reliability 146 9 Internal Validity 165 P A R T 3 Data Analysis 185 10 Descriptive Statistics 186 11 Inferential Statistics 219 12 Statistics in Perspective 245 P A R T 4 Quantitative Research Methodologies 263 13 Experimental Research 264 14 Single-Subject Research 301 15 Correlational Research 330 16 Causal-Comparative Research 365 17 Survey Research 392 P A R T 5 Introduction to Qualitative Research 423 18 The Nature of Qualitative Research 424 19 Observation and Interviewing 444 20 Content Analysis 477 P A R T 6 Qualitative Research Methodologies 505 21 Ethnographic Research 506 22 Historical Research 534 P A R T 7 Mixed-Methods Studies 555 23 Mixed-Methods Research 556 P A R T 8 Research by Practitioners 587 24 Action Research 588 P A R T 9 Writing Research Proposals and Reports 615 25 Preparing Research Proposals and Reports 616 Appendixes A-1 APPENDIX A Portion of a Table of Random Numbers A-2 APPENDIX B Selected Values from a Normal Curve Table A-3 APPENDIX C Chi-Square Distribution A-4 APPENDIX D Using Microsoft Excel A-5 Glossary G-1 Credits C-1 Index I-1

v CONTENTS P A R T 1 Introduction to Research 1 1 The Nature of Research 2 Interactive and Applied Learning 3 Some Examples of Educational Concerns 3 Why Research Is of Value 4 Ways of Knowing 4 Types of Research 7 General Research Types 15 Critical Analysis of Research 16 A Brief Overview of the Research Process 19 Main Points 21 Key Terms 22 For Discussion 23 Notes 23 Research Exercise 1 24 Problem Sheet 1 24 P A R T 2 The Basics of Educational Research 25 2 The Research Problem 26 Interactive and Applied Learning 27 What Is a Research Problem? 27 Research Questions 27 Characteristics of Good Research Questions 28 Main Points 35 Key Terms 35 For Discussion 35 Research Exercise 2 36 Problem Sheet 2 36 3 Locating and Reviewing the Literature 37 Interactive and Applied Learning 38 The Defi nition and Value of a Literature Review 38 Types of Sources 38 Steps Involved in a Literature Search 39 Doing a Computer Search 45 Writing the Literature Review Report 51 Main Points 56 Key Terms 57 For Discussion 57 Notes 58 Research Exercise 3 59 Problem Sheet 3 59 Preface xix

vi CONTENTS www.mhhe.com/fraenkel8e 4 Ethics and Research 60 Interactive and Applied Learning 61 Some Examples of Unethical Practice 61 A Statement of Ethical Principles 61 Protecting Participants from Harm 63 Ensuring Confi dentiality of Research Data 64 When (If Ever) Is Deception of Subjects Justifi ed? 64 Three Examples Involving Ethical Concerns 65 Research with Children 67 Regulation of Research 69 Academic Cheating and Plagiarism 71 Main Points 72 Key Terms 73 For Discussion 73 Notes 73 Research Exercise 4 74 Problem Sheet 4 74 5 Variables and Hypotheses 75 Interactive and Applied Learning 76 The Importance of Studying Relationships 76 Variables 77 Hypotheses 83 Main Points 87 Key Terms 88 For Discussion 88 Note 88 Research Exercise 5 89 Problem Sheet 5 89 6 Sampling 90 Interactive and Applied Learning 91 What Is a Sample? 91 Random Sampling Methods 94 Nonrandom Sampling Methods 97 A Review of Sampling Methods 100 Sample Size 102 External Validity: Generalizing from a Sample 103 Main Points 106 Key Terms 107 For Discussion 107 Research Exercise 6 109 Problem Sheet 6 109 7 Instrumentation 110 Interactive and Applied Learning 111 What Are Data? 111 Means of Classifying Data-Collection Instruments 113 Examples of Data-Collection Instruments 116 Norm-Referenced Versus Criterion-Referenced Instruments 136 Measurement Scales 137 Preparing Data for Analysis 140 Main Points 141 Key Terms 143 For Discussion 143 Notes 143 Research Exercise 7 145 Problem Sheet 7 145 8 Validity and Reliability 146 Interactive and Applied Learning 147 The Importance of Valid Instrumentation 147 Validity 147 Reliability 154 Main Points 162

Key Terms 162 For Discussion 163 Notes 163 Research Exercise 8 164 Problem Sheet 8 164 9 Internal Validity 165 Interactive and Applied Learning 166 What Is Internal Validity? 166 Threats to Internal Validity 167 How Can a Researcher Minimize These Threats to Internal Validity? 179

CONTENTS vii Main Points 180 Key Terms 181 For Discussion 182 Note 182 Research Exercise 9 183 Problem Sheet 9 183 P A R T 3 Data Analysis 185 10 Descriptive Statistics 186 Interactive and Applied Learning 187 Statistics Versus Parameters 187 Two Fundamental Types of Numerical Data 187 Types of Scores 189 Techniques for Summarizing Quantitative Data 190 Techniques for Summarizing Categorical Data 209 Main Points 215 Key Terms 216 For Discussion 217 Research Exercise 10 218 Problem Sheet 10 218 11 Inferential Statistics 219 Interactive and Applied Learning 220 What Are Inferential Statistics? 220 The Logic of Inferential Statistics 221 Hypothesis Testing 228 Practical Versus Statistical Signifi cance 230 Inference Techniques 233 Main Points 241 Key Terms 243 For Discussion 243 Research Exercise 11 244 Problem Sheet 11 244 12 Statistics in Perspective 245 Interactive and Applied Learning 246 Approaches to Research 246 Comparing Groups: Quantitative Data 247 Relating Variables Within a Group: Quantitative Data 251 Comparing Groups: Categorical Data 255 Relating Variables Within a Group: Categorical Data 257 A Recap of Recommendations 259 Main Points 259 Key Terms 260 For Discussion 260 Research Exercise 12 261 Problem Sheet 12 261 P A R T 4 Quantitative Research Methodologies 263 13 Experimental Research 264 Interactive and Applied Learning 265 The Uniqueness of Experimental Research 265 Essential Characteristics of Experimental Research 266 Control of Extraneous Variables 268 Group Designs in Experimental Research 268 Control of Threats to Internal Validity: A Summary 279 Evaluating the Likelihood of a Threat to Internal Validity in Experimental Studies 281 Control of Experimental Treatments 284 An Example of Experimental Research 285 Analysis of the Study 294 Main Points 296 Key Terms 297 For Discussion 298

Notes 299 Research Exercise 13 300 Problem Sheet 13 300

viii CONTENTS www.mhhe.com/fraenkel8e 14 Single-Subject Research 301 Interactive and Applied Learning 302 Essential Characteristics of Single-Subject Research 302 Single-Subject Designs 303 Threats to Internal Validity in Single-Subject Research 309 An Example of Single-Subject Research 314 Analysis of the Study 326 Main Points 327 Key Terms 329 For Discussion 329 Notes 329 15 Correlational Research 330 Interactive and Applied Learning 331 The Nature of Correlational Research 331 Purposes of Correlational Research 332 Basic Steps in Correlational Research 338 What Do Correlation Coeffi cients Tell Us? 340 Threats to Internal Validity in Correlational Research 340 Evaluating Threats to Internal Validity in Correlational Studies 344 An Example of Correlational Research 346 Analysis of the Study 360 Main Points 362 Key Terms 364 For Discussion 364 Notes 364 16 Causal-Comparative Research 365 Interactive and Applied Learning 366 What Is Causal-Comparative Research? 366 Steps Involved in Causal-Comparative Research 369 Threats to Internal Validity in Causal-Comparative Research 370 Evaluating Threats to Internal Validity in Causal- Comparative Studies 372 Data Analysis 373 Associations Between Categorical Variables 375 An Example of Causal-Comparative Research 376 Analysis of the Study 388 Main Points 389 For Discussion 391 Note 391 17 Survey Research 392 Interactive and Applied Learning 393 What Is a Survey? 393 Why Are Surveys Conducted? 393 Types of Surveys 394 Survey Research and Correlational Research 395 Steps in Survey Research 395 Nonresponse 405 Problems in the Instrumentation Process in Survey Research 407 Evaluating Threats to Internal Validity in Survey Research 407 Data Analysis in Survey Research 407 An Example of Survey Research 407

Analysis of the Study 417 Main Points 419 Key Terms 420 For Discussion 420 Notes 421

CONTENTS ix 18 The Nature of Qualitative Research 424 Interactive and Applied Learning 425 What Is Qualitative Research? 425 General Characteristics of Qualitative Research 426 Philosophical Assumptions Underlying Qualitative as Opposed to Quantitative Research 427 Postmodernism 429 Steps in Qualitative Research 429 Approaches to Qualitative Research 432 Qualitative Data Analysis 436 Generalization in Qualitative Research 436 Internal Validity in Qualitative Research 438 Ethics and Qualitative Research 438 Qualitative and Quantitative Research Reconsidered 439 Main Points 440 Key Terms 441 For Discussion 441 Notes 442 19 Observation and Interviewing 444 Interactive and Applied Learning 445 Observation 445 Interviewing 450 Validity and Reliability in Qualitative Research 458 An Example of Qualitative Research 460 Analysis of the Study 471 Main Points 473 Key Terms 474 For Discussion 475 Notes 475 20 Content Analysis 477 Interactive and Applied Learning 478 What Is Content Analysis? 478 Some Applications 479 Categorization in Content Analysis 480 Steps Involved in Content Analysis 480 An Illustration of Content Analysis 486 Using the Computer in Content Analysis 488 Advantages of Content Analysis 489 Disadvantages of Content Analysis 489 An Example of a Content Analysis Study 490 Analysis of the Study 501 Main Points 502 Key Terms 503 For Discussion 504 Notes 504 P A R T 5 Introduction to Qualitative Research 423 P A R T 6 Qualitative Research Methodologies 505 21 Ethnographic Research 506 Interactive and Applied Learning 507 What Is Ethnographic Research? 507 The Unique Value of Ethnographic Research 508 Ethnographic Concepts 509 Sampling in Ethnographic Research 511 Do Ethnographic Researchers Use Hypotheses? 511 Data Collection in Ethnographic Research 512 Data Analysis in Ethnographic Research 516 Roger Harker and His Fifth-Grade Classroom 518 Advantages and Disadvantages of Ethnographic Research 520

An Example of Ethnographic Research 520 Analysis of the Study 530 Main Points 531 Key Terms 532 For Discussion 532 Notes 533

x CONTENTS www.mhhe.com/fraenkel8e 22 Historical Research 534 Interactive and Applied Learning 535 What Is Historical Research? 535 Steps Involved in Historical Research? 536 Data Analysis in Historical Research 541 Generalization in Historical Research 541 Advantages and Disadvantages of Historical Research 542 An Example of Historical Research 543 Analysis of the Study 551 Main Points 552 Key Terms 553 For Discussion 554 Notes 554 23 Mixed-Methods Research 556 Interactive and Applied Learning 557 What Is Mixed-Methods Research? 557 Why Do Mixed-Methods Research? 558 Drawbacks of Mixed-Methods Studies 558 A (Very) Brief History 559 Types of Mixed-Methods Designs 560 Other Mixed-Methods Research Design Issues 562 Steps in Conducting a Mixed-Methods Study 563 Evaluating a Mixed-Methods Study 565 Ethics in Mixed-Methods Research 565 Summary 565 An Example of Mixed-Methods Research 565 Analysis of the Study 580 Main Points 583 Key Terms 584 For Discussion 585 Notes 585 P A R T 7 Mixed-Methods Studies 555 24 Action Research 588 Interactive and Applied Learning 589 What Is Action Research? 589 Types of Action Research 590 Steps in Action Research 592 Similarities and Differences Between Action Research and Formal Quantitative and Qualitative Research 595 The Advantages of Action Research 596 Some Hypothetical Examples of Practical Action Research 597 An Example of Action Research 602 A Published Example of Action Research 603 Analysis of the Study 610 Main Points 611 Key Terms 612 For Discussion 612 Notes 613 P A R T 8 Research by Practitioners 587

CONTENTS xi 25 Preparing Research Proposals and Reports 616 Interactive and Applied Learning 617 The Research Proposal 617 The Major Sections of a Research Proposal or Report 617 Sections Unique to Research Reports 624 A Sample Research Proposal 628 Main Points 640 For Review 640 Key Terms 641 For Discussion 641 Notes 641 Appendixes A-1 APPENDIX A Portion of a Table of Random Numbers A-2 APPENDIX B Selected Values from a Normal Curve Table A-3 APPENDIX C Chi-Square Distribution A-4 APPENDIX D Using Microsoft Excel A-5 Glossary G-1 Credits C-1 Index I-1 P A R T 9 Writing Research Proposals and Reports 615

xii ABOUT THE AUTHORS RESEARCH REPORTS Cognitive Effects of Chess Instruction on Students at Risk for Academic Failure 286 Progressing from Programmatic to Discovery Research: A Case Example with the Overjustifi cation Effect 315 When Teachers� and Parents� Values Differ: Teachers� Ratings of Academic Competence in Children from Low-Income Families 347 Internet Use, Abuse, and Dependence Among Students at a Southeastern Regional University 376 Russian and American College Students� Attitudes, Perceptions, and Tendencies Towards Cheating 408 Walk and Talk: An Intervention for Behaviorally Challenged Youths 460 The �Nuts and Dolts� of Teacher Images in Children�s Picture Storybooks: A Content Analysis 490 Lessons on Effective Teaching from Middle School ESL Students 521 Lydia Ann Stow: Self-Actualization in a Period of Transition 544 Perceived Family Support, Acculturation, and Life Satisfaction in Mexican American Youth: A Mixed- Methods Exploration 566 An Action Research Exploration Integrating Student Choice and Arts Activities in a Sixth Grade Social Studies Classroom 603 RESEARCH TIPS Key Terms to Defi ne in a Research Study 31 What a Good Summary of a Journal Article Should Contain 50 Some Tips About Developing Your Own Instrument 114 Sample Size 234 How Not to Interview 457 What to Do About Contradictory Findings 564 Things to Consider When Doing In-School Research 600 Questions to Ask When Evaluating a Research Report 624 MORE ABOUT RESEARCH Chaos Theory 8 The Importance of a Rationale 33 Patients Given Fake Blood Without Their Knowledge 65 An Example of Unethical Research 67 Department of Health and Human Services Revised Regulations for Research with Human Subjects 71 Some Important Relationships That Have Been Clarifi ed by Educational Research 79 The Diffi culty in Generalizing from a Sample 103 Checking Reliability and Validity�An Example 157 Threats to Internal Validity in Everyday Life 175 Some Thoughts About Meta-Analysis 177 LIST OF FEATURES xii

LIST OF FEATURES xiii Correlation in Everyday Life 213 Interpreting Statistics 258 Signifi cant Findings in Experimental Research 283 Important Findings in Single-Subject Research 303 Examples of Studies Conducted Using Single-Subject Designs 313 Important Findings in Correlational Research 333 Signifi cant Findings in Causal-Comparative Research 375 Important Findings in Survey Research 398 Important Findings in Content Analysis Research 481 Important Findings in Ethnographic Research 508 Important Findings in Historical Research 542 An Important Example of Action Research 597 CONTROVERSIES IN RESEARCH Should Some Research Methods Be Preferred over Others? 15 Clinical Trials�Desirable or Not? 63 Ethical or Not? 70 Sample or Census? 102 Which Statistical Index Is Valid? 139 High-Stakes Testing 150 Is Consequential Validity a Useful Concept? 160 Can Statistical Power Analysis Be Misleading? 240 Statistical Inference Tests�Good or Bad? 249 Do Placebos Work? 281 How Should Research Methodologies Be Classifi ed? 368 Is Low Response Rate Necessarily a Bad Thing? 406 Clarity and Postmodernism 430 Portraiture: Art, Science, or Both? 433 Should Historians Infl uence Policy? 540 Are Some Methods Incompatible with Others? 560 How Much Should Participants Be Involved in Research? 593 TABLES Table 4.1 Criteria for IRB Approval 69 Table 6.1 Part of a Table of Random Numbers 95 Table 7.1 Characteristics of the Four Types of Measurement Scales 139 Table 7.2 Hypothetical Results of Study Involving a Comparison of Two Counseling Methods 140 Table 8.1 Example of an Expectancy Table 153 Table 8.2 Methods of Checking Validity and Reliability 158 Table 9.1 Threats to the Internal Validity of a Study 179 Table 9.2 General Techniques for Controlling Threats to Internal Validity 180 Table 10.1 Hypothetical Examples of Raw Scores and Accompanying Percentile Ranks 190 Table 10.2 Example of a Frequency Distribution 191 Table 10.3 Example of a Grouped Frequency Distribution 191 Table 10.4 Example of the Mode, Median, and Mean in a Distribution 196 Table 10.5 Yearly Salaries of Workers in a Small Business 197

Table 10.6 Calculation of the Standard Deviation of a Distribution 199 Table 10.7 Comparisons of Raw Scores and z Scores on Two Tests 202 Table 10.8 Data Used to Construct Scatterplot in Figure 10.17 206 Table 10.9 Frequency and Percentage of Total of Responses to Questionnaire 211 Table 10.10 Grade Level and Gender of Teachers (Hypothetical Data) 212 Table 10.11 Repeat of Table 10.10 with Expected Frequencies (in Parentheses) 212 Table 10.12 Position, Gender, and Ethnicity of School Leaders (Hypothetical Data) 212 Table 10.13 Position and Ethnicity of School Leaders with Expected Frequencies (Derived from Table 10.12) 213 Table 10.14 Position and Gender of School Leaders with Expected Frequencies (Derived from Table 10.12) 213

xiv LIST OF FEATURES www.mhhe.com/fraenkel8e Table 10.15 Gender and Ethnicity of School Leaders with Expected Frequencies (Derived from Table 10.12) 213 Table 10.16 Total of Discrepancies Between Expected and Observed Frequencies in Tables 10.13 Through 10.15 214 Table 10.17 Crossbreak Table Showing Relationship Between Self-Esteem and Gender (Hypothetical Data) 214 Table 11.1 Contingency Coeffi cient Values for Different-Sized Crossbreak Tables 238 Table 11.2 Commonly Used Inferential Techniques 239 Table 12.1 Gain Scores on Test of Ability to Explain: Inquiry and Lecture Groups 250 Table 12.2 Calculations from Table 12.1 252 Table 12.3 Interpretation of Correlation Coeffi cients when Testing Research Hypotheses 253 Table 12.4 Self-Esteem Scores and Gains in Marital Satisfaction 254 Table 12.5 Gender and Political Preference (Percentages) 256 Table 12.6 Gender and Political Preference (Numbers) 256 Table 12.7 Teacher Gender and Grade Level Taught: Case 1 256 Table 12.8 Teacher Gender and Grade Level Taught: Case 2 256 Table 12.9 Crossbreak Table Showing Teacher Gender and Grade Level with Expected Frequencies Added (Data from Table 12.7) 257 Table 12.10 Summary of Commonly Used Statistical Techniques 258 Table 13.1 Effectiveness of Experimental Designs in Controlling Threats to Internal Validity 280 Table 15.1 Three Sets of Data Showing Different Directions and Degrees of Correlation 332 Table 15.2 Teacher Expectation of Failure and Amount of Disruptive Behavior for a Sample of 12 Classes 334 Table 15.3 Correlation Matrix for Variables in Student Alienation Study 337 Table 15.4 Example of Data Obtained in a Correlational Design 339 Table 16.1 Grade Level and Gender of Teachers (Hypothetical Data) 375 Table 17.1 Advantages and Disadvantages of Survey Data Collection Methods 396 Table 17.2 Advantages and Disadvantages of Closed-Ended Versus Open-Ended Questions 400 Table 18.1 Quantitative Versus Qualitative Research 426 Table 18.2 Major Characteristics of Qualitative Research 428 Table 18.3 Differing Philosophical Assumptions of Quantitative and Qualitative Researchers 429 Table 19.1 Interviewing Strategies Used in Educational Research 452 Table 19.2 Qualitative Research Questions, Strategies, and Data Collection Techniques 459 Table 20.1 Coding Categories for Women in Social

Studies Textbooks 483 Table 20.2 Sample Tally Sheet (Newspaper Editorials) 486 Table 20.3 Clarity of Studies 486 Table 20.4 Type of Sample 486 Table 20.5 Threats to Internal Validity 488 Table 24.1 Basic Assumptions Underlying Action Research 590 Table 24.2 Similarities and Differences Between Action Research and Formal Quantitative and Qualitative Research 596 Table 25.1 References APA Style 625 FIGURES Figure 1.1 Ways of Knowing 10 Figure 1.2 Example of Results of Experimental Research: Effect of Method of Instruction on History Test Scores 11 Figure 1.3 Is the Teacher�s Assumption Correct? 18 Figure 1.4 The Research Process 20 Figure 2.1 Researchable Versus Nonresearchable Questions 29 Figure 2.2 Some Times When Operational Defi nitions Would Be Helpful 32 Figure 2.3 Illustration of Relationship Between Voter Gender and Party Affi liation 34

LIST OF FEATURES xv Figure 3.1 Excerpt from ERIC Journal Article 42 Figure 3.2 Excerpt from ERIC Document 43 Figure 3.3 Excerpt from Proquest Dissertations and Theses 44 Figure 3.4 Excerpt from Education Full Text 45 Figure 3.5 Venn Diagrams Showing the Boolean Operators AND and OR 47 Figure 3.6 Summary of Search Results 48 Figure 3.7 Sample Note Card 51 Figure 3.8 The Yahoo! Web Page 53 Figure 4.1 Example of a Consent Form 64 Figure 4.2 Examples of Unethical Research Practices 66 Figure 4.3 Example of a Consent Form for a Minor to Participate in a Research Study 68 Figure 5.1 Quantitative Variables Compared with Categorical Variables 78 Figure 5.2 Relationship Between Instructional Approach (Independent Variable) and Achievement (Dependent Variable), as Moderated by Gender of Students 81 Figure 5.3 Examples of Extraneous Variables 82 Figure 5.4 A Single Research Problem Can Suggest Several Hypotheses 84 Figure 5.5 Directional Versus Nondirectional Hypotheses 86 Figure 6.1 Representative Versus Nonrepresentative Samples 93 Figure 6.2 Selecting a Stratifi ed Sample 96 Figure 6.3 Cluster Random Sampling 97 Figure 6.4 Random Sampling Methods 98 Figure 6.5 Convenience Sampling 99 Figure 6.6 Nonrandom Sampling Methods 101 Figure 6.7 Population as Opposed to Ecological Generalizing 105 Figure 7.1 ERIC Database of Tests and Assessments 115 Figure 7.2 Search Results for Social Studies Competency-Based Instruments 116 Figure 7.3 Abstract from the ERIC Database 117 Figure 7.4 Excerpt from a Behavior Rating Scale for Teachers 118 Figure 7.5 Excerpt from a Graphic Rating Scale 118 Figure 7.6 Example of a Product Rating Scale 119 Figure 7.7 Interview Schedule (for Teachers) Designed to Assess the Effects of a Competency- Based Curriculum in Inner-City Schools 120 Figure 7.8 Semi-structured Interview Protocol 121 Figure 7.9 Sample Observation Form 121 Figure 7.10 Discussion-Analysis Tally Sheet 122 Figure 7.11 Participation Flowchart 123 Figure 7.12 Performance Checklist Noting Student Actions 124 Figure 7.13 Time-and-Motion Log 125 Figure 7.14 Example of a Self-Checklist 126 Figure 7.15 Examples of Items from a Likert Scale Measuring Attitude Toward Teacher Empowerment 127 Figure 7.16 Example of the Semantic Differential 128 Figure 7.17 Pictorial Attitude Scale for Use with Young Children 128 Figure 7.18 Sample Items from a Personality

Inventory 129 Figure 7.19 Sample Items from an Achievement Test 129 Figure 7.20 Sample Item from an Aptitude Test 130 Figure 7.21 Sample Items from an Intelligence Test 130 Figure 7.22 Example from the Blum Sewing Machine Test 131 Figure 7.23 Sample Items from the Picture Situation Inventory 132 Figure 7.24 Example of a Sociogram 133 Figure 7.25 Example of a Group Play 134 Figure 7.26 Four Types of Measurement Scales 137 Figure 7.27 A Nominal Scale of Measurement 137 Figure 7.28 An Ordinal Scale: The Outcome of a Horse Race 138 Figure 8.1 Types of Evidence of Validity 149 Figure 8.2 Reliability and Validity 155 Figure 8.3 Reliability of a Measurement 155 Figure 8.4 Standard Error of Measurement 158 Figure 8.5 The �Quick and Easy� Intelligence Test 159 Figure 8.6 Reliability Worksheet 160

xvi LIST OF FEATURES www.mhhe.com/fraenkel8e Figure 9.1 A Mortality Threat to Internal Validity 168 Figure 9.2 Location Might Make a Difference 169 Figure 9.3 An Example of Instrument Decay 170 Figure 9.4 A Data Collector Characteristics Threat 170 Figure 9.5 A Testing Threat to Internal Validity 171 Figure 9.6 A History Threat to Internal Validity 172 Figure 9.7 Could Maturation Be at Work Here? 173 Figure 9.8 The Attitude of Subjects Can Make a Difference 174 Figure 9.9 Regression Rears Its Head 176 Figure 9.10 Illustration of Threats to Internal Validity 178 Figure 10.1 Example of a Frequency Polygon 192 Figure 10.2 Example of a Positively Skewed Polygon 193 Figure 10.3 Example of a Negatively Skewed Polygon 193 Figure 10.4 Two Frequency Polygons Compared 193 Figure 10.5 Histogram of Data in Table 10.2 194 Figure 10.6 The Normal Curve 195 Figure 10.7 Averages Can Be Misleading! 197 Figure 10.8 Different Distributions Compared with Respect to Averages and Spreads 198 Figure 10.9 Boxplots 198 Figure 10.10 Standard Deviations for Boys� and Men�s Basketball Teams 200 Figure 10.11 Fifty Percent of All Scores in a Normal Curve Fall on Each Side of the Mean 200 Figure 10.12 Percentages under the Normal Curve 200 Figure 10.13 z Scores Associated with the Normal Curve 201 Figure 10.14 Probabilities under the Normal Curve 203 Figure 10.15 Table Showing Probability Areas Between the Mean and Different z Scores 203 Figure 10.16 Examples of Standard Scores 204 Figure 10.17 Scatterplot of Data from Table 10.8 206 Figure 10.18 Relationship Between Family Cohesiveness and School Achievement in a Hypothetical Group of Students 208 Figure 10.19 Further Examples of Scatterplots 209 Figure 10.20 A Perfect Negative Correlation! 210 Figure 10.21 Positive and Negative Correlations 210 Figure 10.22 Examples of Nonlinear (Curvilinear) Relationships 210 Figure 10.23 Example of a Bar Graph 211 Figure 10.24 Example of a Pie Chart 212 Figure 11.1 Selection of Two Samples from Two Distinct Populations 221 Figure 11.2 Sampling Error 222 Figure 11.3 A Sampling Distribution of Means 223 Figure 11.4 Distribution of Sample Means 224 Figure 11.5 The 95 Percent Confi dence Interval 225 Figure 11.6 The 99 Percent Confi dence Interval 225

Figure 11.7 We Can Be 99 Percent Confi dent 226 Figure 11.8 Does a Sample Difference Refl ect a Population Difference? 226 Figure 11.9 Distribution of the Difference Between Sample Means 227 Figure 11.10 Confi dence Intervals 227 Figure 11.11 Null and Research Hypotheses 229 Figure 11.12 Illustration of When a Researcher Would Reject the Null Hypothesis 230 Figure 11.13 How Much Is Enough? 231 Figure 11.14 Signifi cance Area for a One-Tailed Test 231 Figure 11.15 One-Tailed Test Using a Distribution of Differences Between Sample Means 232 Figure 11.16 Two-Tailed Test Using a Distribution of Differences Between Sample Means 232 Figure 11.17 A Hypothetical Example of Type I and Type II Errors 233 Figure 11.18 Rejecting the Null Hypothesis 239 Figure 11.19 An Illustration of Power Under an Assumed Population Value 239 Figure 11.20 A Power Curve 240 Figure 12.1 Combinations of Data and Approaches to Research 247

LIST OF FEATURES xvii Figure 12.2 A Difference That Doesn�t Make a Difference! 250 Figure 12.3 Frequency Polygons of Gain Scores on Test of Ability to Explain: Inquiry and Lecture Groups 251 Figure 12.4 90 Percent Confi dence Interval for a Difference of 1.2 Between Sample Means 251 Figure 12.5 Scatterplots with a Pearson r of .50 253 Figure 12.6 Scatterplot Illustrating the Relationship Between Initial Self-Esteem and Gain in Marital Satisfaction Among Counseling Clients 255 Figure 12.7 95 Percent Confi dence Interval for r 5 .42 255 Figure 13.1 Example of a One-Shot Case Study Design 269 Figure 13.2 Example of a One-Group Pretest- Posttest Design 269 Figure 13.3 Example of a Static-Group Comparison Design 270 Figure 13.4 Example of a Randomized Posttest- Only Control Group Design 271 Figure 13.5 Example of a Randomized Pretest- Posttest Control Group Design 272 Figure 13.6 Example of a Randomized Solomon Four-Group Design 273 Figure 13.7 A Randomized Posttest-Only Control Group Design, Using Matched Subjects 274 Figure 13.8 Results (Means) from a Study Using a Counterbalanced Design 276 Figure 13.9 Possible Outcome Patterns in a Time- Series Design 277 Figure 13.10 Using a Factorial Design to Study Effects of Method and Class Size on Achievement 278 Figure 13.11 Illustration of Interaction and No Interaction in a 2 by 2 Factorial Design 278 Figure 13.12 Example of a 4 by 2 Factorial Design 279 Figure 13.13 Guidelines for Handling Internal Validity in Comparison Group Studies 282 Figure 14.1 Single-Subject Graph 303 Figure 14.2 A-B Design 304 Figure 14.3 A-B-A Design 305 Figure 14.4 A-B-A-B Design 306 Figure 14.5 B-A-B Design 307 Figure 14.6 A-B-C-B Design 308 Figure 14.7 Multiple-Baseline Design 308 Figure 14.8 Multiple-Baseline Design 309 Figure 14.9 Multiple-Baseline Design Applied to Different Settings 310 Figure 14.10 Variations in Baseline Stability 311 Figure 14.11 Differences in Degree and Speed of Change 312 Figure 14.12 Differences in Return to Baseline Conditions 313 Figure 15.1 Scatterplot Illustrating a Correlation of 11.00 332 Figure 15.2 Prediction Using a Scatterplot 333 Figure 15.3 Multiple Correlation 335 Figure 15.4 Discriminant Function Analysis 336 Figure 15.5 Path Analysis Diagram 338 Figure 15.6 Scatterplots for Combinations

of Variables 342 Figure 15.7 Eliminating the Effects of Age Through Partial Correlation 343 Figure 15.8 Scatterplots Illustrating How a Factor (C) May Not Be a Threat to Internal Validity 346 Figure 15.9 Circle Diagrams Illustrating Relationships Among Variables 346 Figure 16.1 Examples of the Basic Causal- Comparative Design 370 Figure 16.2 A Subject Characteristics Threat 371 Figure 16.3 Does a Threat to Internal Validity Exist? 374 Figure 17.1 Example of an Ideal Versus an Actual Telephone Sample for a Specifi c Question 397 Figure 17.2 Example of Several Contingency Questions in an Interview Schedule 402 Figure 17.3 Sample Cover Letter for a Mail Survey 403 Figure 17.4 Demographic Data and Representativeness 406 Figure 18.1 How Qualitative and Quantitative Researchers See the World 431 Figure 19.1 Variations in Approaches to Observation 447

xviii LIST OF FEATURES www.mhhe.com/fraenkel8e Figure 19.2 The Importance of a Second Observer as a Check on One�s Conclusions 449 Figure 19.3 The Amidon/Flanders Scheme for Coding Categories of Interaction in the Classroom 450 Figure 19.4 An Interview of Dubious Validity 455 Figure 19.5 Don�t Ask More Than One Question at a Time 456 Figure 20.1 TV Violence and Public Viewing Patterns 479 Figure 20.2 What Categories Should I Use? 483 Figure 20.3 An Example of Coding an Interview 484 Figure 20.4 Categories Used to Evaluate Social Studies Research 487 Figure 21.1 Triangulation and Politics 517 Figure 22.1 What Really Happened? 541 Figure 22.2 Historical Research Is Not as Easy as You May Think! 543 Figure 23.1 Exploratory Design 560 Figure 23.2 Explanatory Design 561 Figure 23.3 Triangulation Design 561 Figure 24.1 Stakeholders 591 Figure 24.2 The Role of the �Expert� in Action Research 592 Figure 24.3 Levels of Participation in Action Research 592 Figure 24.4 Participation in Action Research 595 Figure 24.5 Experimental Design for the DeMaria Study 602 Figure 25.1 Organization of a Research Report 626

xix PREFACE How to Design and Evaluate Research in Education is directed to students taking their fi rst course in educational research. Because this fi eld continues to grow so rapidly with regard to both the knowledge it contains and the methodologies it employs, the authors of any introductory text are forced to carefully defi ne their goals as a fi rst step in deciding what to include in their book. In our case, we continually kept three main goals in mind. We wanted to produce a text that would: 1. Provide students with the basic information needed to understand the research process, from idea f ormulation through data analysis and interpretation. 2. Enable students to use this knowledge to design their own research investigation on a topic of personal interest. 3. Permit students to read and understand the literature of educational research. The fi rst two goals are intended to satisfy the needs of those students who must plan and carry out a research project as part of their course requirements. The third goal is aimed at students whose course requirements include learning how to read and understand the research of others. Many instructors, ourselves included, build all three goals into their courses, since each one seems to reinforce the others. It is hard to read and fully comprehend the research of others if you have not yourself gone through the process of designing and evaluating a research project. Similarly, the more you read and evaluate the research of others, the better equipped you will be to design your own meaningful and creative research. In order to achieve the above goals, we have developed a book with the following characteristics. CONTENT COVERAGE Goal one, to provide students with the basic information needed to understand the research process, has resulted in a nine-part book plan. Part 1 (Chapter 1) introduces students to the nature of educational research, briefl y overviews each of the seven methodologies discussed later in the text, and presents an overview of the research process as well as criticisms of it. Part 2 (Chapters 2 through 9) discusses the basic concepts and procedures that must be understood before one can engage in research intelligently or critique it meaningfully. These chapters explain variables, defi nitions, ethics, sampling, instrumentation, validity, reliability, and internal validity. These and other concepts are covered thoroughly, clearly, and relatively simply. Our emphasis throughout is to show students, by means of clear and appropriate examples, how to set up a research study in an educational setting on a question of interest and importance. Part 3 (Chapters 10 through 12) describes in some detail the processes involved in collecting and analyzing data. Part 4 (Chapters 13 through 17) describes and illustrates the methodologies most commonly used in quantitative educational research. Many key concepts presented in Part 2 are considered again in these chapters in order to illustrate their application to each methodology. Finally, each methodology chapter concludes

with a carefully chosen study from the published research literature. Each study is analyzed by the authors with regard to both its strengths and weaknesses. Students are shown how to read and critically analyze a study they might fi nd in the literature. Parts 5 (Chapters 18 through 20) and 6 (Chapters 21 through 22) discuss qualitative research. Part 5 be - g ins the coverage by describing qualitative research, its

xx PREFACE www.mhhe.com/fraenkel8e philosophy, and essential features. It has been expanded to include various types of qualitative research. This is followed by an expanded treatment of both data collection and analysis methods. Part 6 presents the qualitative methodologies of ethnography and historical research. As with the quantitative methodology chapters, all but one of these is followed by a carefully chosen research report from the published research literature, along with our analysis and critique. Part 7 (Chapter 23) discusses Mixed-Methods Studies, which combine quantitative and qualitative methods. Again, as in other chapters, the discussion is followed by our analysis and critique of a research report we have chosen from the published research literature. Part 8 (Chapter 24) describes the assumptions, characteristics, and steps of action research. Classroom examples of action research questions bring the subject to life, as does the addition of a critique of a published study. Part 9 (Chapter 25) shows how to prepare a research proposal or report (involving a methodology of choice) that builds on the concepts and examples developed and illustrated in previous chapters. RESEARCH EXERCISES To achieve our second goal of helping students learn to apply their knowledge of basic processes and methodologies, we organized the fi rst 12 chapters in the same order that students normally follow in developing a research proposal or conducting a research project. Then we concluded each of these chapters with a research exercise that includes a fi ll-in problem sheet. These exercises allow students to apply their understanding of the major concepts of each chapter. When completed, these accumulated problem sheets will have led students through the step-by-step processes involved in designing their own research projects. Although this step-bystep development requires some revision of their work as they learn more about the research process, the gain in understanding that results as they slowly see their proposal develop �before their eyes� justifi es the extra time and effort involved. Problem Sheet templates are located in the Student Mastery Activities book electronically at the Online Learning Center Web site, www.mhhe.com/fraenkel8e. ACTUAL RESEARCH STUDIES Our third goal, to enable students to read and understand the literature of educational research, has led us to conclude each of the methodology chapters in Parts 4, 5, 6, 7, and 8, with an annotated study that illustrates a particular research method. At the end of each study we analyze its strengths and weaknesses and offer suggestions as to how it might be improved. Similarly, at the end of our chapter on writing research proposals and reports, we include a student research proposal that we have critiqued with marginal comments. This annotated proposal has proved an effective means of helping students understand both sound and questionable research practices. STYLE OF PRESENTATION Because students are typically anxious regarding the content of research courses, we have taken extraordinary care not to overwhelm them with dry, abstract discussions, and we have adopted an informal writing

style. More than in any text to date, our presentations are laced with clarifying examples and with summarizing charts, tables, and diagrams. Our experience in teaching research courses for more than 30 years has convinced us that there is no such thing as having �too many� examples in a basic text. In addition to the many examples and illustrations that are embedded in the text, we have built the following pedagogical features into the book: (1) a graphic organizer for each chapter, (2) chapter objectives, (3) chapter-opening examples, (4) endof- chapter summaries, (5) key terms with page references, (6) discussion questions, and (7) an extensive end-of-book glossary. CHANGES IN THE EIGHTH EDITION A number of key additions, new illustrations, and improved or refi ned examples, terminology, and defi nitions have been incorporated in this edition to further meet the goals of the text. The Notes (references) have been updated throughout to include the latest research, and the Research Exercises and Problem Sheets have been revised with more effective questions. Following is a sampling of chapter-by-chapter changes: Chapter 1: The Nature of Educational Research � Moved up discussion of quantitative and qualitative research to the beginning of the �Types of Research� section � Added a new section on evaluation research � Added new key terms Chapter 2: The Research Problem

PREFACE xxi � Revised the section on research questions, including the distinction between quantitative and qualitative research questions and new examples � Revised illustrations to include more diversity Chapter 3: Locating and Reviewing Literature � Originally was Chapter 5; contents moved up to highlight the importance of fi nding and analyzing research while introducing the many new ideas presented about literature review � Updated the technological/digital terminology throughout � Updated the discussion of search engines and other research tools � Added new key terms Chapter 4: Ethics and Research � Added a new section on academic cheating and plagiarism � Revised the opening scenario � Added new information on regulation of research and human subjects, including the NIH and CITI � Updated the discussion of Institutional Review Boards and HHS regulations, and added an IRB (Human Subjects) protocol template and consent form � Added new key terms Chapter 5: Variables and Hypotheses � Originally was Chapter 3; contents moved back for more logical fl ow of material � Revised terminology for clarity � Added new discussion of mediator variables � Added new section on hypotheses and qualitative research � Added new key terms Chapter 6: Sampling � Added mention of how to use computer-generated lists � Added a note on qualitative studies and sample size Chapter 7: Instrumentation � Revised opening case illustration � Added a note on qualitative researchers and objectivity � Updated the discussion on using the ERIC database and other testing resources � Updated the screen captures to show recent searches � Added information on using probes (improvised questions) in interviews � Added a new example of a qualitative, open-ended interview protocol � Added new key terms Chapter 8: Validity and Reliability � Updated terminology Chapter 9: Internal Validity � Revised opening illustration to be more realistic � Revised terminology to refl ect more accepted usage � Added information on qualitative research and internal validity � Inserted new table on �Threats to the Internal Validity of a Study� Chapter 10: Descriptive Statistics � Revised chapter objectives � Revised opening case study

� Added and revised Excel boxes throughout, deleting previous SPSS boxes � Relocated section on �Types of Scores,� originally in Chapter 7 � Added new key terms Chapter 11: Inferential Statistics � Added new Excel box Chapter 12: Statistics in Perspective � Added Delta to discussion of effect size Chapter 13: Experimental Research � Updated examples of experimental studies conducted by educational researchers � Updated digital terms � Revised discussion of gender and groups � Replaced research report and analysis with a new study on students at risk Chapter 14: Single-Subject Research � Replaced opening illustration with case example � Added examples of single-subject studies Chapter 15: Correlational Research � Updated examples of correlational studies Chapter 16: Causal-Comparative Research � Replaced research report and analysis with a new study on Internet use and abuse by students Chapter 17: Survey Research � Added examples of surveys � Added a new section on Web-based surveys Chapter 18: The Nature of Qualitative Research � Added new examples of qualitative studies � Included mention of �theoretical approach� � Revised section on generation of hypotheses

xxii PREFACE www.mhhe.com/fraenkel8e � Added discussion of qualitative data analysis � Added new key terms Chapter 19: Observation and Interviewing � Updated discussion of using technology with current terminology � Added note about attentive listening during interviewing � Expanded discussion of focus groups and the role of the moderator Chapter 20: Content Analysis � Added examples of content analysis studies Chapter 21: Ethnographic Research � Revised opening case study � Revised examples of studies by ethnographers � Added note regarding theoretical generalizability of a study � Replaced research report and analysis with a new study on teaching ESL students Chapter 22: Historical Research � Revised examples of historical studies Chapter 23: Mixed-Methods Research � Revised examples of mixed-methods studies � Added discussion of multiple samples Chapter 24: Action Research � Added examples of action research � Replaced research report and analysis with a new study on integrating student choice and arts activities Chapter 25: Preparing Research Proposals and Reports � Added discussion of qualitative research proposals offering several propositions � Updated terminology used with organization of a research report Appendix D: Using Excel � Revised this appendix to include information on using Excel for various statistical calculations, rather than SPSS, as it is more commonly used today. New Annotated and Analyzed Research Reports: Four new Research Reports have been added to the text, introducing more research involving diverse populations as well as helping the student apply the text�s concepts and also practice evaluating published studies. � Cognitive Effects of Chess Instruction on Students at Risk for Academic Failure � Internet Use, Abuse, and Dependence Among Students at a Southeastern Regional University � Lessons on Effective Teaching from Middle School ESL Students � An Action Research Exploration Integrating Student Choice and Arts Activities in a Sixth-Grade Social Studies Classroom SPECIAL FEATURES Support for Student Learning How to Design and Evaluate Research in Education helps students become critical consumers of research and prepares them to conduct and report their own research. Chapter-opening Features: Each chapter begins with an illustration that visually introduces a topic or issues related to the chapter. This is followed by an outline of chapter content, chapter learning objectives, the Interactive and Applied Learning feature that lists related supplementary material, and a related vignette. More About Research, Research Tips, and Controversies

in Research: These informative sections help students to think critically about research while illustrating important techniques in educational research. End-of-Chapter Learning Supports: The chapters conclude with a reminder of the supplementary resources available, a detailed Main Points section, a listing of Key Terms, and Questions for Discussion. Chapters 1�12 include a Research Exercise and a Problem Sheet to aid students in the construction of a research project. Chapters 13�17 and 19�24 include an actual Research Report that has been annotated to highlight concepts discussed in the chapter. Practical Resources and Examples for Doing and Reading Research How to Design and Evaluate Research in Education provides a comprehensive introduction to research that is brought to life through practical resources and examples for doing and reading research. � Research Tips boxes provide practical suggestions for doing research. � The Annotated Research Reports at the conclusion of Chapters 13�17 and 19�24 present students with research reports and author commentary on how the study authors have approached and supported their research. � Research Exercises and Problems Sheets at the conclusion of Chapters 1�13 are tools for students to use when creating their own research projects.

PREFACE xxiii � Using Excel boxes show how these software programs can be used to calculate various statistics. � Chapter 24: Action Research details how classroom teachers can and should do research to improve their teaching. � Chapter 25: Preparing Research Proposals and Reports walks the reader through proposal and report preparation. � Resources on the Online Learning Center Web site (see listing below) provide students with a place to start when gathering research tools. SUPPLEMENTS THAT SUPPORT STUDENT LEARNING Online Learning Center Web Site at www.mhhe.com/fraenkel8e The Online Learning Center Web site offers tools for study, practice, and application including: Study Resources � Multiple quizzes and fl ashcards for testing content knowledge � Learn More About audio clips that provide additional explanation or examples of key concepts Practice Resources � Student Mastery Activities that provide students extra practice with specifi c concepts � Data Analysis Examples and Exercises Research Resources � Statistics Program � Correlation Coeffi cient Applet � Chi Square Applet � Research Wizard, a wizard version of the Problem Sheets � Forms, including a Research Worksheet, Sample Consent Forms, Research Checklists, electronic versions of the Problem Sheets � A Listing of Professional Journals � Bibliography Builder, an electronic reference builder � The McGraw-Hill Guide to Electronic Research SUPPLEMENTS THAT SUPPORT INSTRUCTORS Online Learning Center Web Site at www.mhhe.com/fraenkel8e The Instructor�s portion of the Online Learning Center offers a number of useful resources for classroom instruction, including an Instructor�s Manual, Test Bank, Computerized Test Bank, chapter-by-chapter PowerPoint presentations, and additional resources. CPS by eInstruction Classroom Performance System is a wireless response system that gives you immediate feedback from every student in the class. These CPS questions are specifi c to How to Design and Evaluate Research in Education, 8/e. Contact your local sales representative for details about this resource. ACKNOWLEDGMENTS Directly and indirectly, many people have contributed to the preparation of this text. We will begin by acknowledging the students in our research classes, who, over the years, have taught us much. Also, we wish to thank the reviewers of this edition, whose generous comments have guided the preparation of this edition. They include: Joshua Bagaka, Cleveland State University

Haiyan Bai, University of Central Florida Patricia Blundell, Chadron State College Dean Cascadden, Plymouth State University Joseph Ciechalski, East Carolina University Noble R. Corey, Indiana State University Gail Fahoome, Wayne State University Michael Gardner, University of Utah Andrea Guillaume, California State University-Fullerton Deborah Hayes, Lincoln Memorial University Jeffrey Lorentz, University of Houston-Clear Lake Jake Marszalek, University of Missouri-Kansas City Jane Strickland, Idaho State University James Therrell, Northwestern Oklahoma Karen Westberg, University of St. Thomas Guili Zhang, East Carolina University We would also like to thank the editors and staff at McGraw-Hill for their efforts in turning the manuscript into the fi nished book before you. Finally, we would like to thank our spouses for their unfl agging support during the highs and lows that inevitably accompany the preparation of a text of this magnitude. Jack R. Fraenkel Norman E. Wallen Helen H. Hyun

xxiv A Guided Tour of How to Design and Evaluate Research in Education Go to the Online Learning Center at www.mhhe.com/fraenkel8e to: � Learn More About What Constitutes an Experiment Go to your online Student Mastery Activities book to do the following activities: � Activity 13.1: Group Experimental Research Questions � Activity 13.2: Designing an Experiment � Activity 13.3: Characteristics of Experimental Research � Activity 13.4: Random Selections vs. Random Assignment INTERACTIVE AND APPLIED LEARNING After, or while, reading this chapter: D oes team-teaching improve the achievement of students in high school social studies classes? Abigail Johnson, the principal of a large high school in Minneapolis, Minnesota, having heard encouraging remarks about the idea at a recent educational conference, wants to find out. Accordingly, she asks some of her eleventh-grade world history teachers to participate in an experiment. Three teachers are to combine their classes into one large group. These teachers are to work as a team, sharing the planning, teaching, and evaluation of these students. Three other teachers are assigned to teach a class in the same subject individually, with the usual arrangement of one teacher per class. The students selected to participate are similar in ability, and the teachers will teach at the same time, using the same curriculum. All are to use the same standardized tests and other assessment instruments, including written tests prepared jointly by the six teachers. Periodically during the semester, Mrs. Johnson will compare the scores of the two groups of students on these tests. fra97851_ch13_263-300.indd 265 12/21/10 6:58 PM OBJECTIVES Studying this chapter should enable you to: � Describe briefl y why a literature review is of value. � Name the steps a researcher goes through in conducting a review of the literature. � Describe briefl y the kinds of information contained in a general reference and give an example of such a source. � Explain the difference between a primary and a secondary source and give an example of each type. � Explain what is meant by the phrase �search term� and how it differs from the term �descriptor,� and how both terms are used in literature searches. � Conduct both a manual and electronic search of the literature on a topic of interest to you after a small amount of �hands-on� computer time and a little help from a librarian. � Write a summary of your literature review. � Explain what a meta-analysis is. The Defi nition and Value of a Literature Review Types of Sources Steps Involved in a Literature Search Defi ne the Problem as

Precisely as Possible Look through One or Two Secondary Sources Select the Appropriate General Reference Tools Formulate Search Terms Search Using General Reference Tools Doing a Computer Search Obtain Primary Sources Writing the Literature Review Report Researching the World Wide Web Locating and Reviewing the Literature 3 �Hey! There�s Joe. Taking it easy, as usual.� �No, he says he�s reviewing the literature for his Biology class!� fra97851_ch03_037-059.indd 37 22/12/10 9:36 PM Welcome to How to Design and Evaluate Research in Education. This comprehensive introduction to research methods was designed to present the basics of educational research in as interesting and understandable a way as possible. To accomplish this, we�ve created the following features for each chapter. Opening Illustration Each chapter opens with an illustrative depiction of a key concept that will be covered in the chapter. Chapter Outline Next, a chapter outline lists the topics to follow. Chapter-Opening Example The chapter text begins with a practical example� a dialogue between researchers or a peek into a classroom�related to the content to follow. Objectives Chapter objectives prepare the student for the chapter ahead. Interactive and Applied Learning Tools This special feature lists the practice activities and resources related to the chapter that are available in the student supplements.

xxv MORE ABOUT RESEARCH revolution in science during the twentieth century (the theory of relativity and the discovery of quantum mechanics being the fi rst two), but that it helps to make sense out of what we view as some implications for educational research. What are these implications? * If chaos theory is correct, the diffi culty in discovering widely generalizable rules or laws in education, let alone the social sciences in general, may not be due to inadequate concepts and theories or to insuffi ciently precise measurement and methodology, but may simply be an unavoidable fact about the world. Another implication is that whatever �laws� we do discover may be seriously limited in their applicability�across geography, across individual and/ or group differences, and across time. If this is so, chaos theory provides support for researchers to concentrate on studying topics at the local level�classroom, school, agency�and for repeated studies over time to see if such laws hold up. Another implication is that educators should pay more attention to the intensive study of the exceptional or the unusual, rather than treating such instances as trivial, incidental, or �errors.� Yet another implication is that researchers should focus on predictability on a larger scale�that is, looking for patterns in individuals or groups over larger units of time. This would suggest a greater emphasis on long-term studies rather than the easier-to-conduct (and cheaper) short-time investigations that are currently the norm. Not surprisingly, chaos theory has its critics. In education, the criticism is not of the theory itself, but more with misinterpretations and/or misapplications of it. � Chaos theorists do not say that all is chaos; quite the contrary, they say that we must pay more attention to chaotic phenomena and revise our conceptions of predictability. At the same time, the laws of gravity still hold, as, with less certainty, do many generalizations in education. Chaos Theory T he origins of what is now known as chaos theory are usually traced to the 1970s. Since then, it has come to occupy a prominent place in mathematics and the natural sciences and, to a lesser extent, in the social sciences. Although the physical sciences have primarily been known for their basic laws, or �fi rst principles,� it has long been known by scientists that most of these laws hold precisely only under ideal conditions that are not found in the �real� world. Many phenomena, such as cloud formations, waterfall patterns, and even the weather, elude precise prediction. Chaos theorists argue that the natural laws that are so useful in science may, in themselves, be the exception rather than the rule. Although precise prediction of such phenomena as the swing of a pendulum or what the weather will be at a particular time is in most cases impossible, repeated patterns, according to a major principle of chaos theory, can be discovered and used, even when the content of the phenomena is chaotic. Developments in computer technology, for example, have made it possible to translate an extremely long sequence of �data points,� such as the test scores of a large group of individuals, into colored visual pictures of fascinating complexity and beauty. Surprisingly, these pictures show distinct patterns that are often quite similar across different content areas, such as

physics, biology, economics, astronomy, and geography. Even more surprising is the fi nding that certain patterns recur as these pictures are enlarged. The most famous example is the �Mandlebrot Bug,� shown in Photographs 1.1 and 1.2. Note that Photograph 1.2 is simply a magnifi cation of a portion of Photograph 1.1. The tiny box in the lower left corner of Photograph 1.1 is magnifi ed to produce the box in the upper lefthand corner of Photograph 1.2. The tiny box within this box is then, in turn, magnifi ed to produce the larger portion of Photograph 1.2, including the reappearance of the �bug� in the lower right corner. The conclusion is that even with highly complex fra97851_ch01_001-024.indd 8 12/21/10 6:35 PM Should Some Research Methods Be Preferred over Others? R ecently, several researchers * have expressed their concern that the U.S. Department of Education is showing favoritism toward the narrow view that experimental research is, if CONTROVERSIES IN RESEARCH *D. C. Berliner (2002). Educational research: The hardest science of all. Educational Researcher, 31 (8): 18�20; F. E. Erickson and K. Gutierrez (2002). Culture, rigor, and science in educational research. Educational Researcher, 31 (8): 21�24. �E. A. St. Pierre (2002). Science rejects postmodernism. Educational Researcher, 31 (8): 25. ALL HAVE VALUE It must be stressed that each of the research methodologies described so briefl y above has value for us in education. Each constitutes a different way of inquiring into the realities that exist within our classrooms and schools and into the minds and emotions of teachers, counselors, administrators, parents, and students. Each represents a different tool for trying to understand what goes on, and what works, in schools. It is inappropriate to consider any one or two of these approaches as superior to any of the others. The effectiveness of a particular methodology depends in large part on the nature of the research question one wants to ask and the specifi c context within which the particular investigation is to take place. We need to gain insights into what goes on in education from as many perspectives as possible, and hence we need to construe research in broad rather than narrow terms. As far as we are concerned, research in education should ask a variety of questions, move in a variety of directions, encompass a variety of methodologies, and use a variety of tools. Different research orientations, DESCRIPTIVE STUDIES Descriptive studies describe a given state of affairs as fully and carefully as possible. One of the best examples of descriptive research is found in botany and zoology, where each variety of plant and animal species is meticulously described and information is organized into useful taxonomic categories. In educational research, the most common descriptive methodology is the survey, as when researchers summarize the characteristics (abilities, preferences, behaviors, and so on) of individuals or groups or (sometimes) physical environments (such as schools). Qualitative approaches, such as ethnographic and historical methodologies are also primarily descriptive in nature. Examples of descriptive studies in education include identifying the achievements of various groups of students; describing the behaviors of teachers, administrators, or counselors; describing the attitudes of parents; and describing the

physical capabilities of schools. The description of phenomena is the starting point for all research endeavors. Descriptive research in and of itself, however, is not not the only, at least the most respectable form of research and the only one worthy of being called scientifi c. Such a preference has implications for both the funding of school programs and educational research. As one writer commented, �How scared should we be when the federal government endorses a particular view of science and rejects others?� � Research Tips These boxes provide practical pointers for doing research. See a full listing of these boxes on page xii. More About Research These boxes take a closer look at important topics in educational research. See a full listing of these boxes, starting on page xii. Controversies in Research These boxes highlight a controversy in research to provide you with a greater understanding of the issue. See a full listing of these boxes on page xiii. Another important point to remember is that often it is a compound term or phrase that needs to be defi ned rather than only a single word. For example, the term nondirective therapy will surely not be clarifi ed by precise defi nitions of nondirective and therapy, since it has a more specifi c meaning than the two words defi ned separately would convey. Similarly, such terms as learning disability, bilingual education, interactive video, and home-centered health care need to be defi ned as linguistic wholes. Here are three defi nitions of the term motivated to learn. Which do you think is the clearest? 1. Works hard 2. Any classroom judged (by an observer spending at least one day per week for four to fi ve weeks) to possess all the following characteristics: a. No more than three children working with the same materials at the same time b. The teacher never spending more than 20 minutes per day addressing the class as a group c. At least half of every class period open for students to work on projects of their own choosing at their own pace d. Several (more than three) sets of different kinds of educational materials available for every student in the class to use e Nontraditional seating st dents sit in circles � Terms that individuals outside the fi eld of study may not understand � Terms that have multiple meanings � Terms that are essential to understanding what the study is about � Terms to provide precision in specifi cations for instruments to be developed or located Key Terms to Defi ne in a Research Study � Terms necessary to ensure that the research question is sharply focused RESEARCH TIPS fra97851_ch02_025-036.indd 31 22/12/10 9:35 PM

xxvi RESEARCH REPORT 566 From: Journal of Counseling Psychology , 53 , no. 3 (2006): 279�287. Reproduced with permission. Perceived Family Support, Acculturation, and Life Satisfaction in Mexican American Youth: A Mixed-Methods Exploration L. M. Edwards Marquette University S. J. Lopez University of Kansas In this article, the authors describe a mixed-methods study designed to explore perceived family support, acculturation, and life satisfaction among 266 Mexican American adolescents. Specifi cally, the authors conducted a thematic analysis of open-ended responses to a question about life satisfaction to understand participants� perceptions of factors that contributed to their overall satisfaction with life. The authors also conducted hierarchical regression analyses to investigate the independent and interactive contributions of perceived support from family and Mexican and Anglo acculturation orientations on life satisfaction. Convergence of mixed-methods fi ndings demonstrated that perceived family support and Mexican orientation were signifi cant predictors of life satisfaction in these adolescents. Implications, limitations, and directions for further research are discussed. Psychologists have identifi ed and studied a number of challenges faced by Latino youth (e.g., juvenile delinquency, gang activity, school dropout, alcohol and drug abuse), yet little scholarly time and energy have been spent on exploring how these adolescents successfully navigate their development into adulthood or how they experience well-being (Rodriguez & Morrobel, 2004). Researchers have yet to understand the personal characteristics that play a role in Latino adolescents� satisfaction with life or how certain cultural values and/or strengths and resources are related to their wellbeing. Answers to these questions can begin to provide counseling psychologists with a deeper understanding of how Latino adolescents experience well-being, which can, in turn, hopefully allow researchers to work to improve well-being for those who struggle to fi nd it. Latino 1 youth are a growing presence in most communities within the United States. The U.S. Census Bureau projects that by the year 2010, 20% of young people between the ages of 10 and 20 years will be of Hispanic origin. Furthermore, it is projected that by the year 2020, one in fi ve children will be Hispanic, and the Hispanic adolescent population will increase by 50% (U.S. Census Bureau, 2000, 2001). Whereas adolescence is a unique developmental period for all youth, Latino adolescents in particular may face additional challenges as a result of their ethnic minority status (Vazquez Garcia, Garcia

Justifi cation 1In this article, the terms Latino and Hispanic have been used interchangeably. Specifically, in cases in which research is summarized, the descriptors used by the authors were retained. The participant sample, however, was restricted to adolescents who self-identified as �Mexican� or �Mexican American� and are thus described as such. fra97851_ch23_555-586.indd 566 22/12/10 11:00 PM CHAPTER 23 Mixed-Methods Research 567 Coll, Erkut, Alarcon, & Tropp, 2000). These youth generally have undergone socialization experiences of their Latino culture (known as enculturation ) and also must learn to acculturate to the dominant culture to some degree (Knight, Bernal, Cota, Garza, & Ocampo, 1993). Navigating the demands of these cultural contexts can be challenging, and yet many Latino youth experience well-being and positive outcomes. The increasing numbers of Latino youth, along with the counseling psychology fi eld�s imperative to provide culturally competent services, require that professionals continue to understand the full range of psychological functioning for members of this unique population. Counseling psychologists have continually emphasized the importance of wellbeing

and identifying and developing client strengths in theory, research, and practice (Lopez et al., 2006; Walsh, 2003). This commitment to understanding the whole person, including internal and contextual assets and challenges, has been one hallmark of the fi eld (Super, 1955; Tyler, 1973) and has infl uenced a variety of research about optimal human functioning (see D. W. Sue & Constantine, 2003). More recent discussions in this area have underscored the importance of identifying and nurturing cultural values and strengths in people of color (e.g., family, religious faith, biculturalism), being cautious to acknowledge that strengths are not universal and may differ according to context or cultural background (Lopez et al., 2006; Lopez et al., 2002; D. W. Sue & Constantine, 2003), and may be infl uenced by certain within-group differences such as acculturation level (Marin & Gamba, 2003; Zane & Mak, 2003). As scholars respond to the emerging need to explore strengths among Latino youth, the importance of investigating these resources and values within a cultural context is evident. Understanding how Latino adolescents experience well-being from their own perspectives and vantage points is integral, as theories from other cultural worldviews may not be applicable to their lives (Auerbach & Silverstein, 2003; Lopez et al., 2002; D. W. Sue & Constantine, 2003). Furthermore, it is necessary to continue to test propositions about the role of certain Latino cultural values, such as the importance of family, in overall wellbeing. Given that many Latino adolescents today navigate bicultural contexts and adhere

to Latino traditions and customs to differing degrees (Romero & Roberts, 2003), it is likely that the role family plays in adolescent well-being is complex and infl uenced by individual differences such as acculturation. In this study, we sought to explore the relationships between these variables by focusing specifi cally on perceived family support, life satisfaction, and acculturation among Mexican American youth. PERCEIVED FAMILY SUPPORT, ACCULTURATION, AND LIFE SATISFACTION AMONG LATINO YOUTH The importance of family has been noted as a core Latino cultural value (Castillo, Conoley, & Brossart, 2004; Marin & Gamba, 2003; Paniagua, 1998; Sabogal, Marin, Otero-Sabogal, Marin, & Perez-Stable, 1987). Familismo (familism) is the term used to describe the importance of extended family ties in Latino culture as well as the strong identifi cation and attachment of individuals with their families (Triandis, Marin, Betancourt, Lisansky, & Chang, 1982). Familism is not unique to Latino culture and has been noted as an important value for other ethnic groups such as African Americans, Asian Americans, and American Indians (Cooper, 1999; Marin & Gamba, 2003). Nevertheless, it is considered a central aspect of Latino culture, and in some studies, it has been shown to be valued by Latino individuals more than by non-Latino Whites (Gaines et al., 1997; Marin, 1993; Mindel, 1980).

In a study of familismo among Latino adolescents, Vazquez Garcia et al. (2000) found that the length of time youth had been in the United States did not affect their adherence to the value of familismo . These results demonstrated that the longer adolescents Defi nitions Justifi cation Purpose Defi nition Prior research fra97851_ch23_555-586.indd 567 22/12/10 11:00 PM Figures and Tables Numerous fi gures and tables explain or extend concepts presented in the text. Research Reports Published research reports are included at the conclusion of methodology chapters. The reports have been annotated to illustrate important points. Figure 6.6 Nonrandom Sampling Methods Populations Z A B C D E G H F I J K L M N O

P Q R S T U V W X Y Z A B C D E F G H I J K L M NO P Q R S T U V W X Y Z U V W X Y P Q R S T K L M N O F G H I J A B C D E Especially qualified Easily accessible Convenience Purposive Systematic L N B FI V Q X LY QB G L V SAMPLES fra97851_ch06_090-109.indd 101 12/21/10 6:43 PM

Research takes many forms. In Part 1, we introduce you to the subject of educational research and explain why knowledge of the various types of research is of value to educators. Because research is but one way to obtain knowledge, we also describe

several other ways and compare the strengths and weaknesses of each. We give a brief overview of educational research methodologies to set the stage for a more extensive discussion in later chapters. Lastly, we discuss criticisms of the research process. Introduction to Research 1 P A R T

�It seems pretty obvious to me that the more you know about a subject, the better you can teach it!� �Right! Just like we know that evidence is overwhelmingly in favor of phonics as the best way to teach reading!� �Well, you both may be in for a surprise!� OBJECTIVES Studying this chapter should enable you to: � Explain what is meant by the term �educational research� and give two examples of the kinds of topics educational researchers might investigate. � Explain why a knowledge of scientifi c research methodology can be of value to educators. � Name and give an example of four ways of knowing other than the method used by scientists. � Explain what is meant by the term �scientifi c method.� � Give an example of six different types of research methodologies used by educational researchers. � Describe briefl y what is meant by critical research. � Describe the differences among descriptive, associational, and intervention-type studies. � Describe briefl y the difference between basic and applied research. � Describe briefl y the difference between quantitative and qualitative research. � Describe briefl y what is meant by mixed - methods research. � Describe briefl y the basic components involved in the research process. Some Examples of Educational Concerns Why Research Is of Value Ways of Knowing Sensory Experience Agreement with Others Expert Opinion Logic The Scientifi c Method Types of Research Quantitative and Qualitative Research Experimental Research Correlational Research Causal-Comparative Research Survey Research Ethnographic Research Historical Research Action Research Evaluation Research All Have Value General Research Types

Descriptive Studies Associational Research Intervention Studies Meta-analysis Critical Analysis of Research A Brief Overview of the Research Process 1 The Nature of Research

3 � The president of the local PTA in Little Rock, parent of a sixth-grader at Cabrillo School, wonders how he can get more parents involved in school-related activities. Each of the above examples, although fi ctional, represents a typical sort of question or concern facing many of us in education today. Together, these examples suggest that teachers, counselors, administrators, parents, and students continually need information to do their jobs. Teachers need to know what kinds of materials, strategies, and activities best help students learn. Counselors need to know what problems hinder or prevent students from learning and how to help them with these problems. Administrators need to know how to provide an environment for happy and productive learning. Parents need to know how to help their children succeed in school. Students need to know how to study to learn as much as they can. Some Examples of Educational Concerns � A high school principal in San Francisco wants to improve the morale of her faculty. � The director of the gifted student program in Denver would like to know what happens during a typical week in an English class for advanced placement students. � An elementary school counselor in Boise wishes he could get more students to open up to him about their worries and problems. � A tenth-grade biology teacher in Atlanta wonders if discussions are more effective than lectures in motivating students to learn biological concepts. � A physical education teacher in Tulsa wonders if ability in one sport correlates with ability in other sports. � A seventh-grade student in Philadelphia asks her counselor what she can do to improve her study habits. Go to the Online Learning Center at www.mhhe.com/fraenkel8e to: � Learn More About Why Research Is of Value Go to your online Student Mastery Activities book to do the following activities: � Activity 1.1: Empirical vs. Nonempirical Research � Activity 1.2: Basic vs. Applied Research � Activity 1.3: Types of Research � Activity 1.4: Assumptions � Activity 1.5: General Research Types INTERACTIVE AND APPLIED LEARNING After, or while, reading this chapter: D r. Hunter? I�m Molly Levine. I called you about getting some advice about the master�s degree program in your department.� �Hello, Molly. Pleased to meet you. Come on in. How can I be of help?� �Well, I�m thinking about enrolling in the master�s degree program in marriage and family counseling, but fi rst I want to know what the requirements are.� �I don�t blame you. It�s always wise to know what you are getting into. To obtain the degree, you�ll need to take a number of courses, and there is also an oral exam once you have completed them. You also will have to complete a small-scale study.� �What do you mean?� �You actually will have to do some research.� �Wow! What does that involve? What do you mean by research, anyway? And how does one do it? What kinds of research

are there?� To fi nd out the answers to Molly�s questions, as well as a few others, read this chapter. �

4 PART 1 Introduction to Research www.mhhe.com/fraenkel8e range of human knowing. To obtain reliable knowledge, therefore, we cannot rely on our senses alone but must check what we think we know with other sources. AGREEMENT WITH OTHERS One such source is the opinions of others. Not only can we share our sensations with others, we can also check on the accuracy and authenticity of these sensations: Does this soup taste salty to you? Isn�t that John over there? Did you hear someone cry for help? Smells like mustard, doesn�t it? Obviously, there is a great advantage to checking with others about whether they see or hear what we do. It can help us discard what is untrue and manage our lives more intelligently by focusing on what is true. If, while hiking in the country, I do not hear the sound of an approaching automobile but several of my companions do and alert me to it, I can proceed with caution. All of us frequently discount our own sensations when others report that we are missing something or �seeing� things incorrectly. Using agreement with others as a means of obtaining information, the tenth-grade biology teacher in Atlanta, for example, might check with her colleagues to see if they fi nd discussions more effective than lectures in motivating their students to learn. The problem with such common knowledge is that it, too, can be wrong. A majority vote of a committee is no guarantee of the truth. My friends might be wrong about the presence of an approaching automobile, or the automobile they hear may be moving away from rather than toward us. Two groups of eyewitnesses to an accident may disagree as to which driver was at fault. Hence, we need to consider some additional ways to obtain reliable knowledge. EXPERT OPINION Perhaps there are particular individuals we should consult�experts in their fi eld, people who know a great deal about what we are interested in fi nding out. We are likely to believe a noted heart specialist, for example, if he says that Uncle Charlie has a bad heart. Surely, a person with a PhD in economics knows more than most of us do about what makes the economy tick. And shouldn�t we believe our family dentist if she tells us that back molar has to be pulled? To use expert opinion as a means of obtaining information, perhaps the physical education teacher in Tulsa should ask a noted authority in the physical education fi eld whether ability in one sport correlates with ability in another. How can educators, parents, and students obtain the information they need? Many ways of obtaining information, of course, exist. One can consult experts, review books and articles, question or observe colleagues with relevant experience, examine one�s own past experience, or even rely on intuition. All these approaches suggest possible ways to proceed, but the answers they provide are not always reliable. Experts may be mistaken; source documents may contain no insights of value; colleagues may have no experience in the matter; and one�s own experience or intuition may be irrelevant or misunderstood. This is why a knowledge of scientifi c research methodology can be of value. The scientifi c method provides us with another way of obtaining information�information that is as accurate and reliable as we can get. Let us compare

it, therefore, with some of the other ways of knowing. Why Research Is of Value Ways of Knowing SENSORY EXPERIENCE We see, we hear, we smell, we taste, we touch. Most of us have seen fi reworks on the Fourth of July, heard the whine of a jet airplane�s engines overhead, smelled a rose, tasted chocolate ice cream, and felt the wetness of a rainy day. The information we take in from the world through our senses is the most immediate way we have of knowing something. Using sensory experience as a means of obtaining information, the director of the gifted-student program mentioned above, for example, might visit an advanced placement English class to see and hear what happens during a week or two of the semester. Sensory data, to be sure, can be refi ned. Seeing the temperature on an outdoor thermometer can refi ne our knowledge of how cold it is; a top-quality stereo system can help us hear Beethoven�s Fifth Symphony with greater clarity; similarly, smell, taste, and touch can all be enhanced, and usually need to be. Many experiments in sensory perception have revealed that we are not always wise to trust our senses too completely. Our senses can (and often do) deceive us: The gunshot we hear becomes a car backfi ring; the water we see in the road ahead is but a mirage; the chicken we thought we tasted turns out to be rabbit. Sensory knowledge is undependable; it is also incomplete. The data we take in through our senses do not account for all (or even most) of what we seem to feel is the

CHAPTER 1 The Nature of Research 5 Well, maybe. It depends on the credentials of the experts and the nature of the question about which they are being consulted. Experts, like all of us, can be mistaken. For all their study and training, what experts know is still based primarily on what they have learned from reading and thinking, from listening to and observing others, and from their own experience. No expert, however, has studied or experienced all there is to know in a given fi eld, and thus even an expert can never be totally sure. All any expert can do is give us an opinion based on what he or she knows, and no matter how much this is, it is never all there is to know. Let us consider, then, another way of knowing: logic. LOGIC We also know things logically. Our intellect�our capability to reason things out�allows us to use sensory data to develop a new kind of knowledge. Consider the famous syllogism: All human beings are mortal. Sally is a human being. Therefore, Sally is mortal. To assert the fi rst statement (called the major premise ), we need only generalize from our experience about the mortality of individuals. We have never experienced anyone who was not mortal, so we state that all human beings are. The second statement (called the minor premise ) is based entirely on sensory experience. We come in contact with Sally and classify her as a human being. We don�t have to rely on our senses, then, to know that the third statement (called the conclusion ) must be true. Logic tells us it is. As long as the fi rst two statements are true, the third statement must be true. Take the case of the counselor in Philadelphia who is asked to advise a student on how to improve her study habits. Using logic, she might present the following argument: Students who take notes on a regular basis in class fi nd that their grades improve. If you take notes on a regular basis, then your grades should improve as well. This is not all there is to logical reasoning, of course, but it is enough to give you an idea of another way of knowing. There is a fundamental danger in logical reasoning, however: It is only when the major and minor premises of a syllogism are both true that the conclusion is guaranteed to be true. If either of the premises is false, the conclusion may or may not be true. * There is still another way of knowing to consider: the method of science. THE SCIENTIFIC METHOD When many people hear the word science, they think of things like white lab coats, laboratories, test tubes, or space exploration. Scientists are people who know a lot, and the term science suggests a tremendous body of knowledge. What we are interested in here, however, is science as a method of knowing. It is the scientific method that is important to researchers. What is this method? Essentially it involves testing ideas in the public arena. Almost all of us humans are capable of making connections�of seeing relationships and associations�among the sensory information we experience. Most of us then identify these connections as �facts��items of knowledge about the world in which we live. We may speculate, for example, that our students may be less attentive in class when we lecture

than when we engage them in discussion. A physician may guess that people who sleep between six and eight hours each night will be less anxious than those who sleep more or less than that amount. A counselor may feel that students read less than they used to because they spend most of their free time watching television. But in each of these cases, we do not really know if our belief is true. What we are dealing with are only guesses or hunches, or as scientists would say, hypotheses. What we must do now is put each of these guesses or hunches to a rigorous test to see if it holds up under more controlled conditions. To investigate our speculation on attentiveness scientifi cally, we can observe carefully and systematically how attentive our students are when we lecture and when we hold a class discussion. The physician can count the number of hours individuals sleep, then measure and compare their anxiety levels. The counselor can compare the reading habits of students who watch different amounts of television. Such investigations, however, do not constitute science unless they are made public. This means that all aspects of the investigation are described in suffi cient detail so that the study can be repeated by anyone who questions the results�provided, of course, that those interested possess the necessary competence and resources. Private procedures, speculations, and conclusions are not scientifi c until they are made public. There is nothing very mysterious, then, about how scientists work in their quest for reliable knowledge. In reality, many of us proceed this way when we try to *In the note-taking example, the major premise (all students who take notes on a regular basis in class improve their grades) is probably not true.

6 PART 1 Introduction to Research www.mhhe.com/fraenkel8e reach an intelligent decision about a problem that is bothering us. These procedures can be boiled down to fi ve distinct steps. 1. First, there is a problem of some sort�some disturbance in our lives that disrupts the normal or desirable state of affairs. Something is bothering us. For most of us who are not scientists, it may be a tension of some sort, a disruption in our normal routine. Examples would be if our students are not as attentive as we wish or if we have diffi culty making friends. To the professional scientist, it may be an unexplained discrepancy in one�s fi eld of knowledge, a gap to be closed. Or it could be that we want to understand the practice of human sacrifi ce in terms of its historical signifi cance. 2. Second, steps are taken to defi ne more precisely the problem or the questions to be answered, to become clearer about exactly what the purpose of the study is. For example, we must think through what we mean by student attentiveness and why we consider it insuffi - cient; the scientist must clarify what is meant by human sacrifi ce (e.g., how does it differ from murder?). 3. Third, we attempt to determine what kinds of information would solve the problem. Generally speaking, there are two possibilities: study what is already known or carry out a piece of research. As you will see, the fi rst is a prerequisite for the second; the second is a major focus of this text. In preparation, we must be familiar with a wide range of possibilities for obtaining information, so as to get fi rsthand information on the problem. For example, the teacher might consider giving a questionnaire to students or having someone observe during class. The scientist might decide to examine historical accounts or spend time in societies where the practice of human sacrifi ce exists (or has until recently). Spelling out the details of information gathering is a major aspect of planning a research study. 4. Fourth, we must decide, as far as it is possible, how we will organize the information that we obtain. It is not uncommon, in both daily life and research, to discover that we cannot make sense of all the information we possess (sometimes referred to as information overload ). Anyone attempting to understand another society while living in it has probably experienced this phenomenon. Our scientist will surely encounter this problem, but so will our teacher unless she has fi gured out how to handle the questionnaire and/or observational information that is obtained. 5. Fifth, after the information has been collected and analyzed, it must be interpreted. While this step may seem straightforward at fi rst, this is seldom the case. As you will see, one of the most important parts of research is to avoid kidding ourselves. The teacher may conclude that her students are inattentive because they dislike lectures, but she may be misinterpreting the information. The scientist may conclude that human sacrifi ce is or was a means of trying to control nature, but this also may be incorrect. In many studies, there are several possible explanations for a problem or phenomenon. These are called hypotheses and may occur at any stage of an investigation.

Some researchers state a hypothesis (e.g., �Students are less attentive during lectures than during discussions�) right at the beginning of a study. In other cases, hypotheses emerge as a study progresses, sometimes even when the information that has been collected is being analyzed and interpreted. The scientist might fi nd that instances of sacrifi ce seemed to be more common after such societies made contact with other cultures, suggesting a hypothesis such as: �Sacrifi ce is more likely when traditional practices are threatened.� We want to stress two crucial features of scientifi c research: freedom of thought and public procedures. At every step, it is crucial that the researcher be as open as humanly possible to alternative ways of focusing and clarifying the problem, collecting and analyzing information, and interpreting results. Further, the process must be as public as possible. It is not a private game to be played by a group of insiders. The value of scientifi c research is that it can be replicated (i.e., repeated) by anyone interested in doing so. * The general order of the scientifi c method, then, is as follows: Identifying a problem or question Clarifying the problem Determining the information needed and how to obtain it Organizing the information Interpreting the results In short, the essence of all research originates in curiosity�a desire to fi nd out how and why things *This is not to imply that replicating a study is a simple matter. It may require resources and training�and it may be impossible to repeat any study in exactly the same way it was done originally. The important principle, however, is that public evidence (as opposed to private experience) is the criterion for belief.

CHAPTER 1 The Nature of Research 7 happen, including why people do the things they do, as well as whether or not certain ways of doing things work better than others. A common misperception of science fosters the idea that there are fi xed, once-and-for-all answers to particular questions. This contributes to a common, but unfortunate, tendency to accept, and rigidly adhere to, oversimplifi ed solutions to very complex problems. While certainty is appealing, it is contradictory to a fundamental premise of science: All conclusions are to be viewed as tentative and subject to change, should new ideas and new evidence warrant revision. It is particularly important for educational researchers to keep this in mind, since the demand for fi nal answers from parents, administrators, teachers, and politicians can often be intense. An example of how science changes is shown in the More About Research box on page 8. For many years, there has been a strong tendency in Western culture to value scientifi c information over all other kinds. In recent years, the limitations of this view have become increasingly recognized and discussed. In education, we would argue that other ways of knowing, in addition to the scientifi c, should at least be considered. As we have seen, there are many ways to collect information about the world around us. Figure 1.1 on page 10 illustrates some of these ways of knowing. The term research can mean any sort of �careful, systematic, patient study and investigation in some fi eld of knowledge. 1 Basic research is concerned with clarifying underlying processes, with the hypothesis usually expressed as a theory. Researchers engaged in basic research studies are not particularly interested in examining the effectiveness of specifi c educational practices. An example of basic research might be an attempt to refi ne one or more stages of Erickson�s psychological theory of development. Applied research , on the other hand, is interested in examining the effectiveness of particular educational practices. Researchers engaged in applied research studies may or may not want to investigate the degree to which certain theories are useful in practical settings. An example might be an attempt by a researcher to fi nd out whether a particular theory of how children learn to read can be applied to fi rst graders who are non-readers. Many studies combine the two types of research. An example would be a study that examines the effects of particular teacher behaviors on students while also testing a theory of personality. Many methodologies fi t within the framework of research. If we learn how to use more of these methodologies where they are appropriate and if we can become more knowledgeable in our research efforts, we can obtain more reliable information upon which to base our educational decisions. Let us look, therefore, at some of the research methodologies we might use. We shall return to each of them in greater detail in Parts 4 and 5. QUANTITATIVE AND QUALITATIVE RESEARCH Another distinction involves the difference between quantitative and qualitative research . Although we shall discuss the basic differences between these two

types of research more fully in Chapter 18, we will provide a brief overview here. In the simplest sense, quantitative data deal primarily with numbers, whereas qualitative data primarily involve words. But this is too simple and too brief. Quantitative and qualitative methods differ in their assumptions about the purpose of research itself, methods utilized by researchers, kinds of studies undertaken, the role of the researcher, and the degree to which generalization is possible. Quantitative researchers usually base their work on the belief that facts and feelings can be separated, that the world is a single reality made up of facts that can be discovered. Types of Research All of us engage in actions that have some of the characteristics of formal research, although perhaps we do not realize this at the time. We try out new methods of teaching, new materials, new textbooks. We compare what we did this year with what we did last year. Teachers frequently ask students and colleagues their opinions about school and classroom activities. Counselors interview students, faculty, and parents about school activities. Administrators hold regular meetings to gauge how faculty members feel about various issues. School boards query administrators, administrators query teachers, teachers query students and each other. We observe, we analyze, we question, we hypothesize, we evaluate. But rarely do we do these things systematically. Rarely do we observe under controlled conditions. Rarely are our instruments as accurate and reliable as they might be. Rarely do we use the variety of research techniques and methodologies at our disposal.

8 MORE ABOUT RESEARCH revolution in science during the twentieth century (the theory of relativity and the discovery of quantum mechanics being the fi rst two), but that it helps to make sense out of what we view as some implications for educational research. What are these implications? * If chaos theory is correct, the diffi culty in discovering widely generalizable rules or laws in education, let alone the social sciences in general, may not be due to inadequate concepts and theories or to insuffi ciently precise measurement and methodology, but may simply be an unavoidable fact about the world. Another implication is that whatever �laws� we do discover may be seriously limited in their applicability�across geography, across individual and/ or group differences, and across time. If this is so, chaos theory provides support for researchers to concentrate on studying topics at the local level�classroom, school, agency�and for repeated studies over time to see if such laws hold up. Another implication is that educators should pay more attention to the intensive study of the exceptional or the unusual, rather than treating such instances as trivial, incidental, or �errors.� Yet another implication is that researchers should focus on predictability on a larger scale�that is, looking for patterns in individuals or groups over larger units of time. This would suggest a greater emphasis on long-term studies rather than the easier-to-conduct (and cheaper) short-time investigations that are currently the norm. Not surprisingly, chaos theory has its critics. In education, the criticism is not of the theory itself, but more with misinterpretations and/or misapplications of it. � Chaos theorists do not say that all is chaos; quite the contrary, they say that we must pay more attention to chaotic phenomena and revise our conceptions of predictability. At the same time, the laws of gravity still hold, as, with less certainty, do many generalizations in education. Chaos Theory T he origins of what is now known as chaos theory are usually traced to the 1970s. Since then, it has come to occupy a prominent place in mathematics and the natural sciences and, to a lesser extent, in the social sciences. Although the physical sciences have primarily been known for their basic laws, or �fi rst principles,� it has long been known by scientists that most of these laws hold precisely only under ideal conditions that are not found in the �real� world. Many phenomena, such as cloud formations, waterfall patterns, and even the weather, elude precise prediction. Chaos theorists argue that the natural laws that are so useful in science may, in themselves, be the exception rather than the rule. Although precise prediction of such phenomena as the swing of a pendulum or what the weather will be at a particular time is in most cases impossible, repeated patterns, according to a major principle of chaos theory, can be discovered and used, even when the content of the phenomena is chaotic. Developments in computer technology, for example, have made it possible to translate an extremely long sequence of �data points,� such as the test scores of a large group of individuals, into colored visual pictures of fascinating complexity and beauty. Surprisingly, these pictures show distinct patterns that are often quite similar across different content areas, such as

physics, biology, economics, astronomy, and geography. Even more surprising is the fi nding that certain patterns recur as these pictures are enlarged. The most famous example is the �Mandlebrot Bug,� shown in Photographs 1.1 and 1.2. Note that Photograph 1.2 is simply a magnifi cation of a portion of Photograph 1.1. The tiny box in the lower left corner of Photograph 1.1 is magnifi ed to produce the box in the upper lefthand corner of Photograph 1.2. The tiny box within this box is then, in turn, magnifi ed to produce the larger portion of Photograph 1.2, including the reappearance of the �bug� in the lower right corner. The conclusion is that even with highly complex data (think of trying to predict the changes that might occur in a cloud formation), predictability exists if patterns can be found across time or when the scale of a phenomenon is increased. IMPLICATIONS FOR EDUCATIONAL RESEARCH We hope that this brief introduction has not only stimulated your interest in what has been called, by some, the third *For more extensive implications in the fi eld of psychology, see M. P. Duke (1994). Chaos theory and psychology: Seven propositions. Genetic, Social and General Psychology Monographs, 120: 267�286. �See W. Hunter, J. Benson, and D. Garth (1997). Arrows in time: The misapplication of chaos theory to education. Journal of Curriculum Studies, 29: 87�100.

9 Photographs 1.1 and 1.2 The Mandlebrot Bug Source: Heinz-Otto Peitgen and Peter H. Richter (1986). The beauty of fractals. Berlin: Springer-Verlag.

10 PART 1 Introduction to Research www.mhhe.com/fraenkel8e Qualitative researchers, on the other hand, assume that the world is made up of multiple realities, socially constructed by different individual views of the same situation. When it comes to the purpose of research, quantitative researchers seek to establish relationships between variables and look for and sometimes explain the causes of such relationships. Qualitative researchers, on the other hand, are more concerned with understanding situations and events from the viewpoint of the participants. Accordingly, the participants often tend to be directly involved in the research process itself. Quantitative research has established widely agreedon general formulations of steps that guide researchers in their work. Quantitative research designs tend to be preestablished. Qualitative researchers have a much greater fl exibility in both the strategies and techniques they use and the overall research process itself. Their designs tend to emerge during the course of the research. Sensing Sharing information with others Being told something by an expert If the cat is in the basket and the basket is in the box, the cat therefore has to be in the box. Logical reasoning Box Science �Boy, that�s hot!� �I�ve concluded that Mr. Johnson has Lyman disease.� �Based on what his x-rays and his blood sample reveal, both of which can be corroborated by anyone.� �On what basis?� Figure 1.1 Ways of Knowing

CHAPTER 1 The Nature of Research 11 The ideal researcher role in quantitative research is that of a detached observer, whereas qualitative researchers tend to become immersed in the situations in which they do their research. The prototypical study in the quantitative tradition is the experiment; for qualitative researchers, it is an ethnography. Lastly, most quantitative researchers want to establish generalizations that transcend the immediate situation or particular setting. Qualitative researchers, on the other hand, often do not even try to generalize beyond the particular situation, but may leave it to the reader to assess applicability. When they do generalize, their generalizations are usually very limited in scope. Many of the distinctions just described, of course, are not absolute. Sometimes researchers will use both qualitative and quantitative approaches in the same study. This kind of research is referred to as mixed-methods research . Its advantage is that by using multiple methods, researchers are better able to gather and analyze considerably more and different kinds of data than they would be able to using just one approach. Mixed-methods studies can emphasize one approach over the other or give each approach roughly equal weight. Consider an example. It is often common in surveys to use closed-ended questions that lend themselves to quantitative analysis (such as through the calculation of percentages of different types of responses), but also open-ended questions that permit qualitative analysis (such as following up a response that interviewees give to a particular question with further questions by the researcher in order to encourage them to elaborate and explain their thinking). Studies in which researchers use both quantitative and qualitative methods are becoming more common, as we will see in Chapter 23. EXPERIMENTAL RESEARCH Experimental research is the most conclusive of scientifi c methods. Because the researcher actually establishes different treatments and then studies their effects, results from this type of research are likely to lead to the most clear-cut interpretations. Suppose a history teacher is interested in the following question: How can I most effectively teach important concepts (such as democracy or colonialism) to my students? The teacher might compare the effectiveness of two or more methods of instruction (usually called the independent variable ) in promoting the learning of historical concepts. After systematically assigning students to contrasting forms of history instruction (such as inquiry versus programmed units), the teacher could compare the effects of these contrasting methods by testing students� conceptual knowledge. Student learning in each group could be assessed by an objective test or some other measuring device. If the average scores on the test (usually called the dependent variable ) differed, they would give some idea of the effectiveness of the various methods. A simple graph could be plotted to show the results, as illustrated in Figure 1.2 . In the simplest sort of experiment, two contrasting methods are compared and an attempt is made to control for all other (extraneous) variables�such as student ability level, age, grade level, time, materials, and teacher characteristics�that might affect the outcome under investigation.

Methods of such control could include holding the classes during the same or closely related periods of time, using the same materials in both groups, comparing students of the same age and grade level, and so on. Of course, we want to have as much control as possible over the assignment of individuals to the various treatment groups, to ensure that the groups are similar. But in most schools, systematic assignment of students to treatment groups is diffi cult, if not impossible, to achieve. Nevertheless, useful comparisons are still possible. You might wish to compare the effect of different teaching methods (lectures versus discussion, for example) on student achievement or attitudes in two or more intact history classes in the same school. If a Figure 1.2 Example of Results of Experimental Research: Effect of Method of Instruction on History Test Scores a a Many of the examples of data presented throughout this text, including that shown in Figure 1.2 , are hypothetical. When actual data are shown, the source is indicated. Lecture Discussion Method of instruction (independent variable) x-axis Test scor e (dependent variable) y-axis

12 PART 1 Introduction to Research www.mhhe.com/fraenkel8e difference exists between the classes in terms of what is being measured, this result can suggest how the two methods compare, even though the exact causes of the difference would be somewhat in doubt. We discuss this type of experimental research in Chapter 13. Another form of experimental research, single-subject research , involves the intensive study of a single individual (or sometimes a single group) over time. These designs are particularly appropriate when studying individuals with special characteristics by means of direct observation. We discuss this type of research in Chapter 14. CORRELATIONAL RESEARCH Another type of research is done to determine relationships among two or more variables and to explore their implications for cause and effect; this is called correlational research . This type of research can help us make more intelligent predictions. For instance, could a math teacher predict which sorts of individuals are likely to have trouble learning the subject matter of algebra? If we could make fairly accurate predictions in this regard, then perhaps we could suggest some corrective measures for teachers to use to help such individuals so that large numbers of �algebra-haters� are not produced. How do we do this? First, we need to collect various kinds of information on students that we think are related to their achievement in algebra. Such information might include their performance on a number of tasks logically related to the learning of algebra (such as computational skills, ability to solve word problems, and understanding of math concepts), their verbal abilities, their study habits, aspects of their backgrounds, their early experiences with math courses and math teachers, the number and kinds of math courses they�ve taken, and anything else that might conceivably point to how those students who do well in math differ from those who do poorly. We then examine the data to see if any relationships exist between some or all of these characteristics and subsequent success in algebra. Perhaps those who perform better in algebra have better computational skills or higher self-esteem or receive more attention from the teacher. Such information can help us predict more accurately the likelihood of learning diffi culties for certain types of students in algebra courses. It may even suggest some specifi c ways to help students learn better. In short, correlational research seeks to investigate the extent to which one or more relationships of some type exist. The approach requires no manipulation or intervention on the part of the researcher other than administering the instrument(s) necessary to collect the data desired. In general, one would undertake this type of research to look for and describe relationships that may exist among naturally occurring phenomena, without trying in any way to alter these phenomena. We talk more about correlational research in Chapter 15. CAUSAL-COMPARATIVE RESEARCH Another type of research is intended to determine the cause for or the consequences of differences between groups of people; this is called causal-comparative research . Suppose a teacher wants to determine whether students from single-parent families do more poorly in

her course than students from two-parent families. To investigate this question experimentally, the teacher would systematically select two groups of students and then assign each to a single- or two-parent family�which is clearly impossible (not to mention unethical!). To test this question using a causal-comparative design, the teacher might compare two groups of students who already belong to one or the other type of family to see if they differ in their achievement. Suppose the groups do differ. Can the teacher defi nitely conclude that the difference in family situation produced the difference in achievement? Alas, no. The teacher can conclude that a difference does exist but cannot say for sure what caused the difference. Interpretations of causal-comparative research are limited, therefore, because the researcher cannot say conclusively whether a particular factor is a cause or a result of the behavior(s) observed. In the example presented here, the teacher cannot be certain whether (1) any perceived difference in achievement between the two groups is due to the difference in home situation, (2) the parent status is due to the difference in achievement between the two groups (although this seems unlikely), or (3) some unidentifi ed factor is at work. Nevertheless, despite problems of interpretation, causal-comparative studies are of value in identifying possible causes of observed variations in the behavior patterns of students. In this respect, they are very similar to correlational studies. We discuss causal-comparative research in Chapter 16. SURVEY RESEARCH Another type of research obtains data to determine specifi c characteristics of a group. This is called

CHAPTER 1 The Nature of Research 13 survey research . Take the case of a high school principal who wants to fi nd out how his faculty feels about his administrative policies. What do they like about his policies? What do they dislike? Why? Which policies do they like the best or least? These sorts of questions can best be answered through a variety of survey techniques that measure faculty attitudes toward the policies of the administration. A descriptive survey involves asking the same set of questions (often prepared in the form of a written questionnaire or ability test) of a large number of individuals either by mail, by telephone, or in person. When answers to a set of questions are solicited in person, the research is called an interview. Responses are then tabulated and reported, usually in the form of frequencies or percentages of those who answer in a particular way to each of the questions. The diffi culties involved in survey research are mainly threefold: (1) ensuring that the questions are clear and not misleading, (2) getting respondents to answer questions thoughtfully and honestly, and (3) getting a suffi cient number of the questionnaires completed and returned to enable making meaningful analyses. The big advantage of survey research is that it has the potential to provide us with a lot of information obtained from quite a large sample of individuals. If more details about particular survey questions are desired, the principal (or someone else) can conduct personal interviews with faculty. The advantages of an interview (over a questionnaire) are that openended questions (those requiring a response of some length) can be used with greater confi dence, particular questions of special interest or value can be pursued in depth, follow-up questions can be asked, and items that are unclear can be explained. We discuss survey research in Chapter 17. ETHNOGRAPHIC RESEARCH In all the examples presented so far, the questions being asked involve how well, how much, or how effi ciently knowledge, attitudes, or opinions and the like exist or are being developed. Sometimes, however, researchers may wish to obtain a more complete picture of the educational process than answers to the above questions provide. When they do, some form of qualitative research is called for. Qualitative research differs from the previous (quantitative) methodologies in both its methods and its underlying philosophy. In Chapter 18, we discuss these differences, along with recent efforts to reconcile the two approaches. Consider the subject of physical education. Just how do physical education teachers teach their subject? What kinds of things do they do as they go about their daily routine? What sorts of things do students do? In what kinds of activities do they engage? What explicit and implicit rules of games in PE classes seem to help or hinder the process of learning? To gain some insight into such concerns, an ethnographic study can be conducted. The emphasis in this type of research is on documenting or portraying the everyday experiences of individuals by observing and interviewing them and relevant others. An elementary

classroom, for example, might be observed on as regular a basis as possible, and the students and teacher involved might be interviewed in an attempt to describe, as fully and as richly as possible, what goes on in that classroom. Descriptions (a better word might be portrayals ) might depict the social atmosphere of the classroom; the intellectual and emotional experiences of students; the manner in which the teacher acts toward and reacts to students of different ethnicities, sexes, or abilities; how the �rules� of the class are learned, modifi ed, and enforced; the kinds of questions asked by the teacher and students; and so forth. The data could include detailed prose descriptions by students of classroom activities, audiotapes of teacher-student conferences, videotapes of classroom discussions, examples of teacher lesson plans and student work, sociograms depicting �power� relationships in the classroom, and fl owcharts illustrating the direction and frequency of certain types of comments (for example, the kinds of questions asked by teacher and students of one another and the responses that different kinds produce). In addition to ethnographic research, qualitative research includes historical research (see Chapter 22) and several other, less commonly used approaches. Casey, 2 for example, has identifi ed 18 types of �narrative� methods. In Chapter 18, we discuss four of the most distinctive of these. These include biography, where the researcher focuses on important experiences in the life of an individual and interacts with the person to clarify meanings and interpretations (e.g., a study of the career of a high school principal). In phenomenology, the researcher focuses on a particular phenomenon (such as school board confl ict), collects data through in-depth interviews with participants, and then identifi es what is common to their perceptions. A third approach is the case study, in which a single individual, group, or important example is studied extensively and

14 PART 1 Introduction to Research www.mhhe.com/fraenkel8e varied data are collected and used to formulate interpretations applicable to the specifi c case (e.g., a particular school board) or to provide useful generalizations. Lastly, grounded theory emphasizes continual interplay between raw data and the researcher�s interpretations that emerge from the data. Its central purpose is to inductively develop a theory from data (e.g., a study of teacher morale in a particular school beginning with interviews and other types of data). HISTORICAL RESEARCH You are probably already familiar with historical research . In this type of research, some aspect of the past is studied, either by perusing documents of the period or by interviewing individuals who lived during the time. The researcher then attempts to reconstruct as accurately as possible what happened during that time and to explain why it did. For example, a curriculum coordinator in a large urban school district might want to know what sorts of arguments have been made in the past as to what should be included in the social studies curriculum for grades K�12. She could read what various social studies and other curriculum theorists have written on the topic and then compare their positions. The major problems in historical research are making sure that the documents or individuals really did come from (or live during) the period under study and, once this is established, ascertaining that what the documents or individuals say is true. We discuss historical research in more detail in Chapter 22. ACTION RESEARCH Action research differs from all the preceding methodologies in two fundamental ways. The fi rst is that generalization to other persons, settings, or situations is of minimal importance. Instead of searching for powerful generalizations, action researchers (often teachers or other education professionals, rather than professional researchers) focus on getting information that will enable them to change conditions in a particular situation in which they are personally involved. Examples would include improving the reading capabilities of students in a specifi c classroom, reducing tensions between ethnic groups in the lunchroom at a particular middle school, or identifying better ways to serve special education students in a specifi ed school district. Accordingly, any of the methodologies discussed earlier may be appropriate. The second difference involves the attention paid to the active involvement of the subjects in a study (i.e., those on whom data is collected), as well as those likely to be affected by the study�s outcomes. Commonly used terms in action research, therefore, are participants or stakeholders, refl ecting an intent to involve them directly in the research process as part of �the research team.� The extent of participation varies from just helping to select instruments and/or collect data to helping to formulate the research purpose and question to actually participating in all aspects of the research investigation from start to fi nish. We discuss action research in some detail in Chapter 24. EVALUATION RESEARCH There are many different kinds of evaluations depending on the object being evaluated and the purpose of the

evaluation. Evaluation research is usually described as either formative or summative . Formative evaluations are intended to improve the object being evaluated; they help to form or strengthen it by examining the delivery of the program or technology and the quality of its implementation. In contrast, summative evaluations seek to examine the effects or outcomes of an object by describing what happens after the delivery of the program or technology in order to assess whether the object caused the outcome. An example of a formative evaluation product is a needs assessment report. A needs assessment determines the appropriate audience for the program, as well as the extent of the need and what might work to meet the need. Summative evaluations can be thought of as either (a) outcome evaluations, which investigate whether the program or technology appeared to have caused demonstrable effects on specifi cally defi ned target outcomes, or (b) impact evaluations, which are broader and attempt to assess the overall effects (intended or unintended) of the program or technology as a whole. Evaluators ask many different kinds of questions and often use a variety of methods to address them. For example, in summative evaluations, evaluators often use quasi-experimental research designs to assess the hypothesized causal effects of a program. Formative evaluations that examine program implementation may also include analysis of existing data sources, surveys, interviews, observational data, and focus groups. * *For foundational readings on evaluation research, see: M. Q. Patton (1982). Practical evaluation . Beverly Hills, CA: Sage; also, M. Q. Patton (2002). Qualitative research and evaluation methods (3rd ed.). Thousand Oaks, CA: Sage.

15 General Research Types Should Some Research Methods Be Preferred over Others? R ecently, several researchers * have expressed their concern that the U.S. Department of Education is showing favoritism toward the narrow view that experimental research is, if CONTROVERSIES IN RESEARCH *D. C. Berliner (2002). Educational research: The hardest science of all. Educational Researcher, 31 (8): 18�20; F. E. Erickson and K. Gutierrez (2002). Culture, rigor, and science in educational research. Educational Researcher, 31 (8): 21�24. �E. A. St. Pierre (2002). Science rejects postmodernism. Educational Researcher, 31 (8): 25. ALL HAVE VALUE It must be stressed that each of the research methodologies described so briefl y above has value for us in education. Each constitutes a different way of inquiring into the realities that exist within our classrooms and schools and into the minds and emotions of teachers, counselors, administrators, parents, and students. Each represents a different tool for trying to understand what goes on, and what works, in schools. It is inappropriate to consider any one or two of these approaches as superior to any of the others. The effectiveness of a particular methodology depends in large part on the nature of the research question one wants to ask and the specifi c context within which the particular investigation is to take place. We need to gain insights into what goes on in education from as many perspectives as possible, and hence we need to construe research in broad rather than narrow terms. As far as we are concerned, research in education should ask a variety of questions, move in a variety of directions, encompass a variety of methodologies, and use a variety of tools. Different research orientations, perspectives, and goals should be not only allowed but encouraged. The intent of this book is to help you learn how and when to use several of these methodologies. DESCRIPTIVE STUDIES Descriptive studies describe a given state of affairs as fully and carefully as possible. One of the best examples of descriptive research is found in botany and zoology, where each variety of plant and animal species is meticulously described and information is organized into useful taxonomic categories. In educational research, the most common descriptive methodology is the survey, as when researchers summarize the characteristics (abilities, preferences, behaviors, and so on) of individuals or groups or (sometimes) physical environments (such as schools). Qualitative approaches, such as ethnographic and historical methodologies are also primarily descriptive in nature. Examples of descriptive studies in education include identifying the achievements of various groups of students; describing the behaviors of teachers, administrators, or counselors; describing the attitudes of parents; and describing the physical capabilities of schools. The description of phenomena is the starting point for all research endeavors. Descriptive research in and of itself, however, is not very satisfying, since most researchers want to have a more complete understanding of people and things. This requires a more detailed analysis of the various aspects of

phenomena and their interrelationships. Advances in biology, for example, have come about, in large part, as a result of the categorization of descriptions and the subsequent determination of relationships among these categories. ASSOCIATIONAL RESEARCH Educational researchers also want to do more than simply describe situations or events. They want to know not the only, at least the most respectable form of research and the only one worthy of being called scientifi c. Such a preference has implications for both the funding of school programs and educational research. As one writer commented, �How scared should we be when the federal government endorses a particular view of science and rejects others?� � It is useful to consider the various research methodologies we have described as falling within one or more general research categories: descriptive, associational, or intervention-type studies.

16 PART 1 Introduction to Research www.mhhe.com/fraenkel8e how (or if), for example, differences in achievement are related to such things as teacher behavior, student diet, student interests, or parental attitudes. By investigating such possible relationships, researchers are able to understand phenomena more completely. Furthermore, the identifi cation of relationships enables one to make predictions. If researchers know that student interest is related to achievement, for example, they can predict that students who are more interested in a subject will demonstrate higher achievement in that subject than students who are less interested. Research that investigates relationships is often referred to as associational research . Correlational and causalcomparative methodologies are the principal examples of associational research. Other examples include studying relationships (1) between achievement and attitude, between childhood experiences and adult characteristics, or between teacher characteristics and student achievement�all of which are correlational studies�and (2) between methods of instruction and achievement (comparing students who have been taught by each method) or between gender and attitude (comparing attitudes of males and females)�both of which are causal-comparative studies. As useful as associational studies are, they too are ultimately unsatisfying because they do not permit researchers to �do something� to infl uence or change outcomes. Simply determining that student interest is predictive of achievement does not tell us how to change or improve either interest or achievement, although it does suggest that increasing interest would increase achievement. To fi nd out whether one thing will have an effect on something else, researchers need to conduct some form of intervention study. INTERVENTION STUDIES In intervention studies , a particular method or treatment is expected to infl uence one or more outcomes. Such studies enable researchers to assess, for example, the effectiveness of various teaching methods, curriculum models, classroom arrangements, and other efforts to infl uence the characteristics of individuals or groups. Intervention studies can also contribute to general knowledge by confi rming (or failing to confi rm) theoretical predictions (for instance, that abstract concepts can be taught to young children). The primary methodology used in intervention research is the experiment. Some types of educational research may combine these three general approaches. Although historical, ethnographic, and other qualitative research methodologies are primarily descriptive in nature, at times they may be associational if the investigator examines relationships. A descriptive historical study of college entrance requirements over time that examines the relationship between those requirements and achievement in mathematics is also associational. An ethnographic study that describes in detail the daily activities of an inner-city high school and also fi nds a relationship between media attention and teacher morale in the school is both descriptive and associational. An investigation of the effects of different teaching methods on concept learning that also reports the relationship between concept learning and gender

is an example of a study that is both an intervention and an associational-type study. META-ANALYSIS Meta-analysis is an attempt to reduce the limitations of individual studies by trying to locate all of the studies on a particular topic and then using statistical means to synthesize the results of these studies. In Chapter 3, we discuss meta-analysis in more detail. In subsequent chapters, we examine in detail the limitations that are likely to be found in various types of research. Some apply to all types, while others are more likely to apply to particular types. Critical Analysis of Research There are some who feel that researchers who engage in the kinds of research we have just described take a bit too much for granted�indeed, that they make a number of unwarranted (and usually unstated) assumptions about the nature of the world in which we live. These critics (usually referred to as critical researchers ) raise a number of philosophical, linguistic, ethical, and political questions not only about educational research as it is usually conducted but also about all fi elds of inquiry, ranging from the physical sciences to literature. In an introductory text, we cannot hope to do justice to the many arguments and concerns these critics have raised over the years. What we can do is provide an introduction to some of the major questions they have repeatedly asked.

CHAPTER 1 The Nature of Research 17 The fi rst issue is the question of reality: As any beginning student of philosophy is well aware, there is no way to demonstrate whether anything �really exists.� There is, for example, no way to prove conclusively to others that I am looking at what I call a pencil (e.g., others may not be able to see it; they may not be able to tell where I am looking; I may be dreaming). Further, it is easily demonstrated that different individuals may describe the same individual, action, or event quite differently�leading some critics to the conclusion that there is no such thing as reality, only individual (and different) perceptions of it. One implication of this view is that any search for knowledge about the �real� world is doomed to failure. We would acknowledge that what the critics say is correct: We cannot, once and for all, �prove� anything, and there is no denying that perceptions differ. We would argue, however, that our commonsense notion of reality (that what most knowledgeable persons agree exists is what is real) has enabled humankind to solve many problems�even the question of how to put a man on the moon. The second issue is the question of communication . Let us assume that we can agree that some things are �real.� Even so, the critics argue that it is virtually impossible to show that we use the same terms to identify these things. For example, it is well known that the Inuit have many different words (and meanings) for the English word snow . To put it differently, no matter how carefully we defi ne even a simple term such as shoe, the possibility always remains that one person�s shoe is not another�s. (Is a slipper a shoe? Is a shower clog a shoe?) If so much of language is imprecise, how then can relationships or laws�which try to indicate how various terms, things, or ideas are connected�be precise? Again, we would agree. People often do not agree on the meaning of a word or phrase. We would argue, however (as we think would most researchers), that we can defi ne terms clearly enough to enable different people to agree suffi ciently about what words mean that they can communicate and thus get on with the acquisition of useful knowledge. The third issue is the question of values. Historically, scientists have often claimed to be value free, that is, �objective,� in their conduct of research. Critics have argued, however, that what is studied in the social sciences, including the topics and questions with which educational researchers are concerned, is never objective but rather socially constructed. Such things as teacher-student interaction in classrooms, the performance of students on examinations, the questions teachers ask, and a host of other issues and topics of concern to educators do not exist in a vacuum. They are infl uenced by the society and times in which people live. As a result, such topics and concerns, as well as how they are defi ned, inevitably refl ect the values of that society. Further, even in the physical sciences, the choice of problems to study and the means of doing so refl ect the values of the researchers involved. Here, too, we would agree. We think that most researchers

in education would acknowledge the validity of the critics� position. Many critical researchers charge, however, that such agreement is not suffi ciently refl ected in research reports. They say that many researchers fail to admit or identify �where they are coming from,� especially in their discussions of the fi ndings of their research. The fourth issue is the question of unstated assumptions. An assumption is anything that is taken for granted rather than tested or checked. Although this issue is similar to the previous issue, it is not limited to values but applies to both general and specifi c assumptions that researchers make with regard to a particular study. Some assumptions are so generally accepted that they are taken for granted by practically all social researchers (e.g., the sun will come out; the earth will continue to rotate). Other assumptions are more questionable. An example given by Krathwohl 3 clarifi es this. He points out that if researchers change the assumptions under which they operate, this may lead to different consequences. If we assume, for example, that mentally limited students learn in the same way as other students but more slowly, then it follows that given suffi cient time and motivation, they can achieve as well as other students. The consequences of this view are to give these individuals more time, to place them in classes where the competition is less intense, and to motivate them to achieve. If, on the other hand, we assume that they use different conceptual structures into which they fi t what they learn, this assumption leads to a search for simplifi ed conceptual structures they can learn that will result in learning that approximates that of other students. Frequently authors do not make such assumptions clear. In many studies, researchers implicitly assume that the terms they use are clear, that their samples are appropriate, and that their measurements are accurate. Designing a good study can be seen as trying

18 PART 1 Introduction to Research www.mhhe.com/fraenkel8e to reduce these kinds of assumptions to a minimum. Readers should always be given enough information so that they do not have to make such assumptions. Figure 1.3 illustrates how an assumption can often be incorrect. The fi fth issue is the question of societal consequences. Critical theorists argue that traditional research efforts (including those in education) predominantly serve political interests that are, at best, conservative or, at worst, oppressive. They point out that such research is almost always focused on improving existing practices rather than raising questions about the practices themselves. They argue that, intentional or not, the efforts of most educational researchers have served essentially to reinforce the status quo. A more extreme position alleges that educational institutions (including research), rather than enlightening the citizenry, have served instead to prepare them to be uncritical functionaries in an industrialized society. We would agree with this general criticism but note that there have been a number of investigations of the status quo itself, followed by suggestions for improvement, that have been conducted and offered by researchers of a variety of political persuasions. Let us examine each of these issues in relation to a hypothetical example. Suppose a researcher decides to study the effectiveness of a course in formal logic in improving the ability of high school students to analyze arguments and arrive at defensible conclusions from data. The researcher accordingly designs a study that is sound enough in terms of design to provide at least a partial answer as to the effectiveness of the course. Let us address the fi ve issues presented above in relation to this study. 1. The question of reality: The abilities in question (analyzing arguments and reaching accurate conclusions) clearly are abstractions. They have no physical reality per se. But does this mean that such abilities do not �exist� in any way whatsoever? Are they nothing more than artifi cial by-products of our conceptual language system? Clearly, this is not the case. Such abilities do indeed exist in a somewhat limited sense, as when we talk about the �ability� of a person to do well on tests. But is test performance indicative of how well a student can perform in real life? If it is not, is the performance of students on such tests important? A critic might allege that the ability to analyze, for example, is situation specifi c: Some people are good analyzers on tests; others, in public forums; others, of written materials; and so forth. If this is so, then the concept of a general ability to �analyze arguments� would be an illusion. We think a good argument can be made that this is not the case�based on commonsense experience and on some research fi ndings. We must admit, however, that the critic has a point (we don�t know for sure how general this ability is), and one that should not be overlooked. 2. The question of communication: Assuming that these abilities do exist, can we defi ne them well enough so ?

�I copied from Angela.� �I�m a good guesser.� �I read the right pages in the book.� �I knew this stuff from last year.� �You all did well on the test. You must have studied hard!� Figure 1.3 Is the Teacher�s Assumption Correct?

CHAPTER 1 The Nature of Research 19 that meaningful communication can result? We think so, but it is true that even the clearest of defi nitions does not always guarantee meaningful communication. This is often revealed when we discover that the way we use a term differs from how someone else uses the same term, despite previous agreement on a defi nition. We may agree, for example, that a �defensible conclusion� is one that does not contradict the data and that follows logically from the data, yet still fi nd ourselves disagreeing as to whether or not a particular conclusion is a defensible one. Debates among scientists often boil down to differences as to what constitutes a defensible conclusion from data. 3. The question of values: Researchers who decide to investigate outcomes such as the ones in this study make the assumption that the outcomes are either desirable (and thus to be enhanced) or undesirable (and thus to be diminished), and they usually point out why this is so. Seldom, however, are the values (of the researchers) that led to the study of a particular outcome discussed. Are these outcomes studied because they are considered of highest priority? because they are traditional? socially acceptable? easier to study? fi nancially rewarding? The researcher�s decision to study whether a course in logic will affect the ability of students to analyze arguments refl ects his or her values. Both the outcomes and the method studied refl ect Eurocentric ideas of value; the Aristotelian notion of the �rational man� (or woman) is not dominant in all cultures. Might some not claim, in fact, that we need people in our society who will question basic assumptions more than we need people who can argue well from these assumptions? While researchers probably cannot be expected to discuss such complex issues in every study, these critics render a service by urging all of us interested in research to think about how our values may affect our research endeavors. 4. The question of unstated assumptions: In carrying out such a study, the researcher is assuming not only that the outcome is desirable but that the fi ndings of the study will have some infl uence on educational practice. Otherwise, the study is nothing more than an academic exercise. Educational methods research has been often criticized for leading to suggested practices that, for various reasons, are unlikely to be implemented. While we believe that such studies should still be done, researchers have an obligation to make such assumptions clear and to discuss their reasonableness. 5. The question of societal consequences: Finally, let us consider the societal implications of a study such as this. Critics might allege that this study, while perhaps defensible as a scientifi c endeavor, will have a negative overall impact. How so? First by fostering the idea that the outcome being studied (the ability to analyze arguments) is more important than other outcomes (e.g., the ability to see novel or unusual relationships). This allegation has, in fact, been made for many years in education�that researchers have overemphasized the study of some outcomes at the expense of others.

A second allegation might be that such research serves to perpetuate discrimination against the less privileged segments of society. If it is true, as some contend, that some cultures are more �linear� and others more �global,� then a course in formal logic (being primarily linear) may increase the advantage already held by students from the dominant linear culture. 4 It can be argued that a fairer approach would teach a variety of argumentative methods, thereby capitalizing on the strengths of all cultural groups. To summarize, we have attempted to present the major issues raised by an increasingly vocal part of the research community. These issues involve the nature of reality, the diffi culty of communication, the recognition that values always affect research, unstated assumptions, and the consequences of research for society as a whole. While we do not agree with some of the specifi c criticisms raised by these writers, we believe the research enterprise is the better for their efforts. A Brief Overview of the Research Process Regardless of methodology, all researchers engage in a number of similar activities. Almost all research plans include, for example, a problem statement, a hypothesis, defi nitions, a literature review, a sample of subjects, tests or other measuring instruments, a description of procedures to be followed, including a time schedule, and a description of intended data analyses. We deal with each of these components in some detail throughout this book, but we want to give you a brief overview of them before we proceed.

20 PART 1 Introduction to Research www.mhhe.com/fraenkel8e Figure 1.4 presents a schematic of the research components. The solid-line arrows indicate the sequence in which the components are usually presented and described in research proposals and reports. They also indicate a useful sequence for planning a study (that is, thinking about the research problem, followed by the hypothesis, followed by the defi nitions, and so forth). The broken-line arrows indicate the most likely departures from this sequence (for example, consideration of instrumentation sometimes results in changes in the sample; clarifying the question may suggest which type of design is most appropriate). The nonlinear pattern is intended to point out that, in practice, the process does not necessarily follow a precise sequence. In fact, experienced researchers often consider many of these components simultaneously as they develop their research plan. Statement of the research problem: The problem of a study sets the stage for everything else. The problem statement should be accompanied by a description of the background of the problem (what factors caused it to be a problem in the fi rst place) and a rationale or justifi cation for studying it. Any legal or ethical ramifi cations related to the problem should be discussed and resolved. Formulation of an exploratory question or a hypothesis: Research problems are usually stated as questions, and often as hypotheses. A hypothesis is a prediction, a statement of what specifi c results or outcomes are expected to occur. The hypotheses of a study should clearly indicate any relationships expected between the variables (the factors, characteristics, or conditions) being investigated and be so stated that they can be tested within a reasonable period of time. Not all studies are hypothesis- testing studies, but many are. Defi nitions: All key terms in the problem statement and hypothesis should be defi ned as clearly as possible. Review of the related literature: Other studies related to the research problem should be located and their results briefl y summarized. The literature review (of appropriate journals, reports, monographs, etc.) should shed light on what is already known about the problem and should indicate logically why the proposed study would result in an extension of this prior knowledge. Sample: The subjects * (the sample ) of the study and the larger group, or population (to whom results are to be generalized), should be clearly identifi ed. The sampling plan (the procedures by which the subjects will be selected) should be described. Instrumentation: Each of the measuring instruments that will be used to collect data from the subjects should be described in detail, and a rationale should be given for its use. Procedures: The actual procedures of the study� what the researcher will do (what, when, where, how, and with whom) from beginning to end, in the order in which they will occur�should be spelled out in detail (although this is not written in stone). This, of course, is much less feasible and appropriate in a qualitative study. A realistic

time schedule outlining when various tasks are to Procedures/ design Research problem Hypotheses or questions Instrumentation Data analysis Sample Definitions Literature review Figure 1.4 The Research Process *The term subjects is offensive to some because it can imply that those being studied are deprived of dignity. We use it because we know of no other term of comparable clarity in this context.

CHAPTER 1 The Nature of Research 21 be started, along with expected completion dates, should also be provided. All materials (e.g., textbooks) and/or equipment (e.g., computers) that will be used in the study should also be described. The general design or methodology (e.g., an experiment or a survey) to be used should be stated. In addition, possible sources of bias should be identifi ed, and how they will be controlled should be explained. Data analysis: Any statistical techniques, both descriptive and inferential, to be used in the data analysis should be described. The comparisons to be made to answer the research question should be made clear. Go back to the INTERACTIVE AND APPLIED LEARNING feature at the beginning of the chapter for a listing of interactive and applied activities. Go to the Online Learning Center at www.mhhe.com/fraenkel8e to take quizzes, practice with key terms, and review chapter content. WHY RESEARCH IS OF VALUE � The scientifi c method provides an important way to obtain accurate and reliable information. WAYS OF KNOWING � There are many ways to obtain information, including sensory experience, agreement with others, expert opinion, logic, and the scientifi c method. � The scientifi c method is considered by researchers the most likely way to produce reliable and accurate knowledge. � The scientifi c method involves answering questions through systematic and public data collection and analysis. TYPES OF RESEARCH � Some of the most commonly used research methodologies in education are experimental research, correlational research, causal-comparative research, survey research, ethnographic research, historical research, and action research. � Experimental research involves manipulating conditions and studying effects. � Correlational research involves studying relationships among variables within a single group and frequently suggests the possibility of cause and effect. � Causal-comparative research involves comparing known groups who have had different experiences to determine possible causes or consequences of group membership. � Survey research involves describing the characteristics of a group by means of such instruments as interview questions, questionnaires, and tests. � Ethnographic research concentrates on documenting or portraying the everyday experiences of people, using observation and interviews. � Ethnographic research is one form of qualitative research. Other common forms of qualitative research include the case study, biography, phenomenology, and grounded theory. � A case study is a detailed analysis of one or a few individuals. � Historical research involves studying some aspect of the past. Main Points

22 PART 1 Introduction to Research www.mhhe.com/fraenkel8e � Action research is a type of research by practitioners designed to help improve their practice. � Evaluation research aims to improve the object or program being evaluated, usually by strengthening its delivery, implementation, and outcomes. � Each of the research methodologies described constitutes a different way of inquiring into reality and is thus a different tool for understanding what goes on in education. GENERAL RESEARCH TYPES � Individual research methodologies can be classifi ed into general research types. Descriptive studies describe a given state of affairs. Associational studies investigate relationships. Intervention studies assess the effects of a treatment or method on outcomes. � Quantitative and qualitative research methodologies are based on different assumptions; they also differ on the purpose of research, the methods used by researchers, the kinds of studies undertaken, the researcher�s role, and the degree to which generalization is possible. � Mixed-method research incorporates both quantitative and qualitative approaches. � Meta-analysis attempts to synthesize the results of all the individual studies on a given topic by statistical means. CRITICAL ANALYSIS OF RESEARCH � Critical analysis of research raises basic questions about the assumptions and implications of educational research. THE RESEARCH PROCESS � Almost all research plans include a problem statement, an exploratory question or hypothesis, defi nitions, a literature review, a sample of subjects, instrumentation, a description of procedures to be followed, a time schedule, and a description of intended data analyses. action research 14 applied research 7 associational research 16 assumption 17 basic research 7 causal-comparative research 12 chaos theory 8 correlational research 12 critical researcher 16 data analysis 21 descriptive studies 15 ethnographic study 13 evaluation research 14 experimental research 11 formative evaluation 14 historical research 14 hypothesis 20 instruments 20 intervention studies 16 literature review 20 meta-analysis 16

mixed-methods research 11 population 20 problem statement 20 procedure 20 qualitative research 7 quantitative research 7 research 7 sample 20 scientifi c method 5 single-subject research 12 subject 20 summative evaluation 14 survey research 13 variables 20 Key Terms

CHAPTER 1 The Nature of Research 23 1. �Speculation, procedures, and conclusions are not scientifi c unless they are made public.� Is this true? Discuss. 2. Most quantitative researchers believe that the world is a single reality, whereas most qualitative researchers believe that the world is made up of multiple realities. Which position would you support? Why? 3. Can you think of some other ways of knowing besides those mentioned in this chapter? What are they? What, if any, are the limitations of these methods? 4. �While certainty is appealing, it is contradictory to a fundamental premise of science.� What does this mean? Discuss. 5. Is there such a thing as private knowledge? If so, can you give an example? 6. Many people seem to be uneasy about the idea of research, particularly research in schools. How would you explain this? 1. Webster�s new world dictionary of the American language, 2nd ed. (1984). New York: Simon and Schuster, p. 1208. 2. K. Casey (1995, 1996). The new narrative research in education. Review of Research in Education, 21: 211�253. 3. D. R. Krathwohl (2009). Methods of educational and social science research, 3rd ed. Long Grove, IL: Waveland Press, p. 91. 4. M. Ramirez and A. Casteneda (1974). Cultural democracy, biocognitive development and education. New York: Academic Press. For Discussion Notes

24 PART 1 Introduction to Research www.mhhe.com/fraenkel8e Research Exercise 1: What Kind of Research? Think of a research idea or problem you would like to investigate. Using Problem Sheet 1, briefl y describe the problem in a sentence or two. Then indicate the type of research methodology you would use to investigate this problem. Finally, explain briefl y your reasons for choosing this approach. Problem Sheet 1 Research Method 1. A possible topic or problem I am thinking of researching is: ___________________ ____________________________________________________________________ ____________________________________________________________________ 2. The specifi c method(s) that seem(s) most appropriate for me to use at this time is/are ( circle all you think are appropriate ): a. an experiment b. a survey c. an ethnography d. a correlational study e. a causal-comparative study f. a case study g. a content analysis h. a historical study i. an action research or teacher research study j. a program evaluation 3. The overall research approach I am planning to use is ( circle one ): a. Qualitative b. Quantitative c. Mixed Method 4. My reason(s) for using this approach is/are as follows: ____________________________________________________________________ ____________________________________________________________________ ____________________________________________________________________ ____________________________________________________________________ ____________________________________________________________________ ____________________________________________________________________ An electronic version of this Problem Sheet that you can fi ll in and print, save, or e-mail is available on the Online Learning Center at www.mhhe.com/ fraenkel8e.

In Part 2, we introduce or expand on many of the basic ideas involved in educational research. These include concepts such as hypotheses, variables, sampling, measurement, validity, reliability, and many others. We also begin to supply you with certain

skills that will enhance your ability to understand and master the research process. These include such things as how to select a research problem, formulate a hypothesis, conduct a literature search, choose a sample, defi ne words and phrases clearly,

develop a valid instrument, plus many others. Regardless of the methodology a researcher uses, all of these skills are important to master. We also discuss the ethical implications involved in the conduct of research itself. The Basics of Educational Research 2 P A R T

OBJECTIVES Studying this chapter should enable you to: � Give some examples of potential research problems in education. � Formulate a research question. � Distinguish between researchable and nonresearchable questions. � Name fi ve characteristics that good research questions possess. � Describe three ways to clarify unclear research questions. � Give an example of an operational defi nition and explain how such defi nitions differ from other kinds of defi nitions. � Explain what is meant, in research, by the term �relationship� and give an example of a research question that involves a relationship. What Is a Research Problem? Research Questions Characteristics of Good Research Questions Research Questions Should Be Feasible Research Questions Should Be Clear Research Questions Should Be Signifi cant Research Questions Often Investigate Relationships 2 The Research Problem �My research question is: �What�s the absolute best way to teach history to ninthgraders?�� �Sorry, Suzy, but that question, as stated, isn�t researchable.�

27 quantitative, or mixed method) used to conduct the study rather than the other way around, i.e., the methodology determining the question. The following examples of initial research questions in education are not suffi ciently developed for actual use in a research project but would be suitable during the early stage of formulating a research question. An appropriate methodology and research paradigm (in parentheses) are provided for each question. Although there are other possible methodologies that might be used, we consider those given here as particularly suitable. � Does client-centered therapy produce more satisfaction in clients than traditional therapy? (experimental research; quantitative) � What goes on in after-school programs during an average week? (ethnographic research; qualitative) � Does behavior modifi cation reduce aggression in autistic children? (single-subject experimental research; quantitative) � Do teachers behave differently toward students of different genders? (causal-comparative research; quantitative or mixed method) � How can we predict which students might have trouble learning certain kinds of subject matter? (correlational research; quantitative) � How do parents feel about the school counseling program? (survey research; quantitative) What Is a Research Problem? A research problem is exactly that�a problem that someone would like to research. A problem can be anything that a person fi nds unsatisfactory or unsettling, a diffi culty of some sort, a state of affairs that needs to be changed, anything that is not working as well as it might. Problems involve areas of concern to researchers, conditions they want to improve, diffi culties they want to eliminate, questions for which they seek answers. For researchers and students alike, research problems are usually identifi ed from several sources including (a) the research literature�see detailed discussion in Chapter 3 on the role of the literature review in formulating research questions; (b) problems in practice or workrelated contexts; and (c) personal biography or history (such as current or past personal experiences or identities, race, ethnicity, gender, class background, family customs, religion, and so forth). Research Questions Usually a research problem is initially posed as a question, which serves as the focus of the researcher�s investigation. In our view, the research question should dictate the research type and paradigm (qualitative, Go to the Online Learning Center at www.mhhe.com/fraenkel8e to: � Learn More About What Makes a Question Researchable Go to your online Student Mastery Activities book to do the following activities: � Activity 2.1: Research Questions and Related Designs � Activity 2.2: Changing General Topics into Research Questions � Activity 2.3: Operational Defi nitions � Activity 2.4: Justifi cation � Activity 2.5: Evaluating Research Questions INTERACTIVE AND APPLIED LEARNING After, or while, reading this chapter:

R obert Adams, a high school teacher in Omaha, Nebraska, wants to investigate whether the inquiry method will increase the interest of his eleventh-grade students in history. Phyllis Gomez, a physical education teacher in an elementary school in Phoenix, Arizona, wants to fi nd out how her sixth-grade students feel about the new exercise program recently mandated by the school district. Tami Mendoza, a counselor in a large inner-city high school in San Francisco, wonders whether a clientcentered approach might help ease the hostility that many of her students display during counseling sessions. Each of these examples presents a problem that could serve as a basis for research. Research problems�the focus of a research investigation� are what this chapter is about.

28 PART 2 The Basics of Educational Research www.mhhe.com/fraenkel8e 3. Does high school achievement infl uence the academic achievement of university students? 4. What is the best way to teach grammar? 5. What would schools be like today if World War II had not occurred? We hope you identifi ed questions 2 and 3 as the two that are researchable. Questions 1, 4, and 5, as stated, cannot be researched. Question 1 is another metaphysical question and, as such, does not lend itself to empirical research (we could ask people if they believe God is good, but that would be another question). Question 4 asks for the �best� way to do something. Think about this one for a moment. Is there any way we can determine the best way to do anything? To be able to determine this, we must examine every possible alternative, and a moment�s refl ection brings us to the realization that this can never be accomplished. How would we ever be sure that all possible alternatives have been examined? Question 5 requires the creation of impossible conditions. We can, of course, investigate what people think schools would be like. Figure 2.1 illustrates the difference between researchable and nonresearchable questions. Characteristics of Good Research Questions Once a research question has been formulated, researchers want to turn it into as good a question as possible. Good research questions possess four essential characteristics. 1. The question is feasible (i.e., it can be investigated without expending an undue amount of time, energy, or money). 2. The question is clear (i.e., most people would agree as to what the key words in the question mean). 3. The question is signifi cant (i.e., it is worth investigating because it will contribute important knowledge about the human condition). 4. The question is ethical (i.e., it will not involve physical or psychological harm or damage to human beings or to the natural or social environment of which they are a part). We will discuss the subject of ethics in detail in Chapter 4. Let us discuss some of these characteristics in more detail. � Why do fi rst-generation college students have a lower graduation rate at San Simeon University? (case study; mixed method) � How can principals improve faculty morale at lowperforming middle schools? (interview research; qualitative) What all these questions have in common is that we can collect data of some sort to answer them (at least in part). That�s what makes them researchable. For example, a researcher can measure the satisfaction levels of clients who receive different methods of therapy. Or researchers can observe and interview in order to describe the functioning of an elementary school classroom. To repeat, then, what makes these questions researchable is that some sort of information can be collected to answer them. There are other kinds of questions, however, that cannot be answered by collecting and analyzing data.

Here are two examples: � Should philosophy be included in the high school curriculum? � What is the meaning of life? Why can�t these questions be researched? What about them prevents us from collecting information to answer them? The reason is both simple and straightforward: There is no way to collect information to answer either question. Both questions are, in the fi nal analysis, not researchable. The fi rst question is a question of value �it implies notions of right and wrong, proper and improper�and therefore does not have any empirical (or observable) referents . There is no way to deal, empirically, with the verb should. How can we empirically determine whether or not something �should� be done? What data could we collect? There is no way for us to proceed. However, if the question is changed to �Do people think philosophy should be included in the high school curriculum?� it becomes researchable. Why? Because now we can collect data to help us answer the question. The second question is metaphysical in nature� that is, transcendental, beyond the physical. Answers to this sort of question lie beyond the accumulation of information. Here are more ideas for research questions. Which ones (if any) do you think are researchable? 1. Is God good? 2. Are children more engaged when taught by a teacher of the same gender?

CHAPTER 2 The Research Problem 29 RESEARCH QUESTIONS SHOULD BE FEASIBLE Feasibility is an important issue in designing research studies. A feasible question is one that can be investigated with available resources. Some questions (such as those involving space exploration, for example, or the study of the long-term effects of special programs, such as Head Start) require a great deal of time and money; others require much less. Unfortunately, the fi eld of education, unlike medicine, business, law, agriculture, pharmacology, or the military, has never established an ongoing research effort tied closely to practice. Most of the research that is done in schools or other educational institutions is likely to be done by �outsiders��often university professors and their students�and usually is funded by temporary grants. Thus, lack of feasibility often seriously limits research efforts. Following are two examples of research questions, one feasible and one not so feasible. Feasible: How do the students at Oceana High School feel about the new guidance program recently instituted in the district? Not so feasible: How would achievement be affected by giving each student his or her own laptop computer to use for a semester? RESEARCH QUESTIONS SHOULD BE CLEAR Because the research question is the focus of a research investigation, it is particularly important that the question be clear. What exactly is being investigated? Let us consider two examples of research questions that are not clear enough. Example 1. �Is a humanistically oriented classroom effective?� Although the phrase humanistically oriented classroom may seem quite clear, many people may not be sure exactly what it means. If we ask, What is a humanistically oriented classroom? we begin to discover that it is not as easy as we might have thought to describe its essential characteristics. What happens in such classrooms that is different from what happens in other classrooms? Do teachers use certain kinds of strategies? Do they lecture? In what sorts of activities do students participate? What do such classrooms look like��how is the seating arranged, for example? What kinds of materials are used? Is there much variation to be found from classroom to classroom in the strategies employed by the teacher or in the sorts of activities in which students engage? Do the kinds of materials available and/or used vary? Another term in this question is also ambiguous. What does the term effective mean? Does it mean �results in increased academic profi ciency,� �results in happier children,� �makes life easier for teachers,� or �costs less money�? Maybe it means all these things and more. Figure 2.1 Researchable Versus Nonresearchable Questions No Not researchable Yes Researchable Should I put my youngster in preschool?

What is the best way to learn to read? Are some people born bad? Do children enrolled in preschool develop better social skills than children not enrolled? At which age is it more helpful to introduce phonics to children�age 5, age 6, or age 7? Who commits more crimes�poor people or rich people?

30 PART 2 The Basics of Educational Research www.mhhe.com/fraenkel8e Example 2. �How do teachers feel about special classes for the educationally handicapped?� The fi rst term that needs clarifi cation is teachers. What age group does this involve? What level of experience (i.e., are probationary teachers, for example, included)? Are teachers in both public and private schools included? Are teachers throughout the nation included, or only those in a specifi c locality? Does the term refer to teachers who do not teach special classes as well as those who do? The phrase feel about is also ambiguous. Does it mean opinions? emotional reactions? Does it suggest actions? or what? The terms special classes and educationally handicapped also need to be clarifi ed. An example of a legal defi nition of an educationally handicapped student is: A minor who, by reason of marked learning or behavioral disorders, is unable to adapt to a normal classroom situation. The disorder must be associated with a neurological handicap or an emotional disturbance and must not be due to mental retardation, cultural deprivation, or foreign language problems. Note that this defi nition itself contains some ambiguous words, such as marked learning disorders, which lend themselves to a wide variety of interpretations. This is equally true of the term cultural deprivation, which is not only ambiguous but also often offensive to members of ethnic groups to whom it is frequently applied. As we begin to think about these (or other) questions, it appears that terms which seemed at fi rst glance to be words or phrases that everyone would easily understand are really quite complex and far more diffi cult to defi ne than we might originally have thought. This is true of many current educational concepts and methodologies. Consider such terms as core curriculum, client-centered counseling, active learning, and quality management. What do such terms mean? If you were to ask a sample of fi ve or six teachers, counselors, or administrators, you probably would get several different defi nitions. Although such ambiguity is valuable in some circumstances and for certain purposes, it represents a problem to investigators of a research question. Researchers have no choice but to be specifi c about the terms used in a research question, to defi ne precisely what is to be studied. In making this effort, researchers gain a clearer picture of how to proceed with an investigation and, in fact, sometimes decide to change the very nature of the research. How, then, might the clarity of a research question be improved? Defining Terms. There are essentially three ways to clarify important terms in a research question. The fi rst is to use a constitutive definition �that is, to use what is often referred to as the dictionary approach. Researchers simply use other words to say more clearly what is meant. Thus, the term humanistic classroom might be defi ned as A classroom in which: (1) the needs and interests of students have the highest priority; (2) students work on their own for a considerable amount of time in each class period; and (3) the teacher acts as a guide and a resource person rather than an informant. Notice, however, that this defi nition is still somewhat

unclear, since the words being used to explain the term humanistic are themselves ambiguous. What does it mean to say that the �needs and interests of students have the highest priority� or that �students work on their own�? What is a �considerable amount� of each class period? What does a teacher do when acting as a �guide� or a �resource person�? Further clarifi cation is needed. Students of communication have demonstrated just how diffi cult it is to be sure that the message sent is the message received. It is probably true that no one ever completely understands the meaning of terms that are used to communicate. That is, we can never be certain that the message we receive is the one the sender intended. Some years ago, one of the leaders in our fi eld was said to have become so depressed by this idea that he quit talking to his colleagues for several weeks. A more constructive approach is simply to do the best we can. We must try to explain our terms to others. While most researchers try to be clear, there is no question that some do a much better job than others. © The New Yorker Collection 1998 Tom Cheney from cartoonbank.com. All Rights Reserved.

31 Another important point to remember is that often it is a compound term or phrase that needs to be defi ned rather than only a single word. For example, the term nondirective therapy will surely not be clarifi ed by precise defi nitions of nondirective and therapy, since it has a more specifi c meaning than the two words defi ned separately would convey. Similarly, such terms as learning disability, bilingual education, interactive video, and home-centered health care need to be defi ned as linguistic wholes. Here are three defi nitions of the term motivated to learn. Which do you think is the clearest? 1. Works hard 2. Is eager and enthusiastic 3. Sustains attention to a task * As you have seen, the dictionary approach to clarifying terms has its limitations. A second possibility is clarification by example . Researchers might think of a few humanistic classrooms with which they are familiar and then try to describe as fully as possible what happens in these classrooms. Usually we suggest that people observe such classrooms to see for themselves how they differ from other classrooms. This approach also has its problems, however, since our descriptions may still not be as clear to others as they would like. Thus, a third method of clarifi cation is to defi ne important terms operationally. Operational definitions require that researchers specify the actions or operations necessary to measure or identify the term. For example, here are two possible operational defi nitions of the term humanistic classroom. 1. Any classroom identifi ed by specifi ed experts as constituting an example of a humanistic classroom 2. Any classroom judged (by an observer spending at least one day per week for four to fi ve weeks) to possess all the following characteristics: a. No more than three children working with the same materials at the same time b. The teacher never spending more than 20 minutes per day addressing the class as a group c. At least half of every class period open for students to work on projects of their own choosing at their own pace d. Several (more than three) sets of different kinds of educational materials available for every student in the class to use e. Nontraditional seating�students sit in circles, small groupings of seats, or even on the fl oor to work on their projects f. Frequent (at least two per week) discussions in which students are encouraged to give their opinions and ideas on topics being read about in their textbooks The above listing of characteristics and behaviors may be a quite unsatisfactory defi nition of a humanistic classroom to many people (and perhaps to you). But it is considerably more specifi c (and thus clearer) than the defi nition with which we began. � Armed with this defi - nition (and the necessary facilities), researchers could decide quickly whether or not a particular classroom qualifi ed as an example of a humanistic classroom.

Defi ning terms operationally is a helpful way to clarify their meaning. Operational defi nitions are useful tools and should be mastered by all students of research. *We judge 3 to be the clearest, followed by 1 and then 2. � Terms that individuals outside the fi eld of study may not understand � Terms that have multiple meanings � Terms that are essential to understanding what the study is about � Terms to provide precision in specifi cations for instruments to be developed or located Key Terms to Defi ne in a Research Study � Terms necessary to ensure that the research question is sharply focused RESEARCH TIPS �This is not to say that this list would not be improved by making the guidelines even more specifi c. These characteristics, however, do meet the criterion for an operational defi nition�they specify the actions researchers need to take to measure or identify the variable being defi ned.

32 PART 2 The Basics of Educational Research www.mhhe.com/fraenkel8e Remember that the operations or activities necessary to measure or identify the term must be specifi ed. Which of the following possible defi nitions of the term motivated to learn mathematics do you think are operational? 1. As shown by enthusiasm in class 2. As judged by the student�s math teacher using a rating scale she developed 3. As measured by the �Math Interest� questionnaire 4. As shown by attention to math tasks in class 5. As refl ected by achievement in mathematics 6. As indicated by records showing enrollment in mathematics electives 7. As shown by effort expended in class 8. As demonstrated by number of optional assignments completed 9. As demonstrated by reading math books outside class 10. As observed by teacher aides using the �Mathematics Interest� observation record * In addition to their value in helping readers understand how researchers actually obtain the information they need, operational defi nitions are often helpful in clarifying terms. Thinking about how to measure job satisfaction, for example, is likely to force a researcher to clarify, in his or her own mind, what he or she means by the term. (For everyday examples of times when operational defi nitions are needed, see Figure 2.2 .) Despite their virtues, however, operational defi nitions in and of themselves are often not illuminating. Reading that �language profi ciency is (operationally) defi ned as *The operational defi nitions are 2, 3, 6, 8, and 10. The nonoperational defi nitions are 1, 4, 5, 7, and 9, because the activities or operations necessary for identifying the behavior have not been specifi ed. Figure 2.2 Some Times When Operational Defi nitions Would Be Helpful �Margaret really Mrs. Robinson.� likes Potential Buyer �I want to buy an inexpensive car.� Car Salesman �Susan�s teacher says her work isn�t artistic.� �I disagree! She�s very creative!� Painting �Under $10,000.� �Up to $25,000!� �Hi� �Jamie is really smart, isn�t he?� �He does get really good grades.�

�No, he has no common sense at all.� �No way! He was the only one who got lost on our camping trip.� �Nah. He�s no good in woodshop.� �He knows how to please people, that�s for sure.�

33 the student�s score on the TOLD test� is not very helpful unless the reader is familiar with this particular test. Even when this is the case, it is more satisfactory to be informed of what the researcher means by the term. For these reasons we believe that an operational defi nition should always be accompanied by a constitutive one. The importance of researchers being clear about the terms in their research questions cannot be overstated. Researchers will have diffi culty proceeding with plans for the collection and analysis of data if they do not know exactly what kind of data to look for. And they will not know what data to look for if they are unclear about the meaning of the key terms in the research question. RESEARCH QUESTIONS SHOULD BE SIGNIFICANT Research questions also should be worth investigating. In essence, we need to consider whether getting the answer to a question is worth the time and energy (and often money). What, we might ask, is the value of investigating a particular question? In what ways will it contribute to our knowledge about education? to our knowledge of human beings? Is such knowledge important in some way? If so, how? These questions ask researchers to think about why a research question is worthwhile�that is, important or signifi cant. It probably goes without saying that a research question is of interest to the person who asks it. But is interest alone suffi cient justifi cation for an investigation? For some people, the answer is a clear yes. They say that any question that someone sincerely wants an answer to is worth investigating. Others, however, say that personal interest, in and of itself, is an insuffi cient reason. Too often, they point out, personal interest can result in the pursuit of trivial or insignifi cant questions. Because most research efforts require some (and often a considerable) expenditure of time, energy, materials, money, and/or other resources, it is easy to appreciate the point of view that some useful outcome or payoff should result from the research. The investment of oneself and others in a research enterprise should contribute some knowledge of value to the fi eld of education. Generally speaking, most researchers do not believe that research efforts based primarily on personal interest alone warrant investigation. Furthermore, there is some reason to question a �purely curious� motive on psychological grounds. Most questions probably have some degree of hidden motivation behind them, and for the sake of credibility, these reasons should be made explicit. One of the most important tasks for any researcher, therefore, is to think through the value of the intended research before too much preliminary work is done. Three important questions should be asked: 1. How might answers to this research question advance knowledge in my fi eld? 2. How might answers to this research question improve educational practice? 3. How might answers to this research question improve the human condition? As you think about possible research questions, ask yourself: Why would it be important to answer this question? Does the question have implications for the improvement of practice? for administrative decision

making? for program planning? Is there an important issue that can be illuminated to some degree by a study of this question? Is it related to a current theory that I have doubts about or would like to substantiate? Thinking through possible answers to these questions can help you judge the signifi cance of a potential research question. In our experience, student justifi cations for a proposed study are likely to have two weaknesses. First, they assume too much�for example, that everyone trivial. Some recipients complained of �cheap shots,� arguing that their research had not received a complete or fair hearing. While it is doubtless true that research is often specialized in nature and not easily communicated to persons outside the fi eld, we believe more attention should be paid to: � Avoiding esoteric terminology � Defi ning key terms clearly and, when feasible, both constitutively and operationally � Making a clear and persuasive case for the importance of a study The Importance of a Rationale R esearch in education, as in all of social science, has sometimes been criticized as trivial. Some years ago, Senator William Proxmire gained considerable publicity for his �golden fl eece� awards, which he bestowed on governmentfunded studies that he considered particularly worthless or MORE ABOUT RESEARCH

34 PART 2 The Basics of Educational Research www.mhhe.com/fraenkel8e would agree with them (i.e., it is self-evident) that it is important to study something like self-esteem or ability to read. In point of fact, not everyone does agree that these are important topics to study; nonetheless, it is still the researcher�s job to make the case that they are important rather than merely assuming that they are. Second, students often overstate the implications of a study. Evidence of the effectiveness of a particular teaching method does not, for example, imply that the method will be generally adopted or that improvement in student achievement will automatically result. It would imply, for example, that more attention should be given to the method in teacher-training programs. RESEARCH QUESTIONS OFTEN INVESTIGATE RELATIONSHIPS There is an additional characteristic that good research questions often possess. They frequently (but not always) suggest a relationship of some sort to be investigated. (We discuss the reasons for this in Chapter 5.) A suggested relationship means that two qualities or characteristics are tied together or connected in some way. Are motivation and learning related? If so, how? What about age and attractiveness? speed and weight? height and strength? a principal�s administrative policies and faculty morale? It is important to understand how the term relationship is used in research, since the term has other meanings in everyday life. When researchers use the term relationship, they are not referring to the nature or quality of an association between people, for example. What we and other researchers mean is perhaps best clarifi ed visually. Look, for example, at the data for groups A and B in Figure 2.3 . What do you notice? The hypothetical data for group A show that out of a total of 32 individuals, 16 are Republicans and 16 are Democrats. It also shows that half are male and half are female. Group B shows the same breakdown by party affi liation and gender. What is different between the two groups is that there is no association or relationship between gender and political party in group A, whereas there is a very strong relationship between these two factors in group B. We can express the relationship in group B by saying that males tend to be Republicans while females tend to be Democrats. We can also express this relationship in terms of a prediction. Should another female join group B, we would predict she would be a Democrat since 14 of the previous 16 females are Democrats. Figure 2.3 Illustration of Relationship Between Voter Gender and Party Affi liation Group A: No relationship Male Female Democrat Republican 16 16 16 16 16 16 Group B: Relationship Male Female Democrat Republican 16 16 Go back to the INTERACTIVE AND APPLIED LEARNING feature at the

beginning of the chapter for a listing of interactive and applied activities. Go to the Online Learning Center at www.mhhe.com/fraenkel8e to take quizzes, practice with key terms, and review chapter content.

CHAPTER 2 The Research Problem 35 RESEARCH PROBLEM � A research problem is the focus of a research investigation. RESEARCH QUESTIONS � Many research problems are stated as questions. � The essential characteristic of a researchable question is that there be some sort of information that can be collected in an attempt to answer the question. CHARACTERISTICS OF GOOD RESEARCH QUESTIONS � Research questions should be feasible�that is, capable of being investigated with available resources. � Research questions should be clear�that is, unambiguous. � Research questions should be signifi cant�that is, worthy of investigation. � Research questions should be ethical�that is, their investigation should not involve physical or psychological harm or damage to human beings or to the natural or social environment of which they are a part. � Research questions often (although not always) suggest a relationship to be investigated. The term relationship, as used in research, refers to a connection or association between two or more characteristics or qualities. DEFINING TERMS IN RESEARCH � Three common ways to clarify ambiguous or unclear terms in a research question

involve the use of constitutive (dictionary-type) defi nitions, defi nition by example, and operational defi nitions. � A constitutive defi nition uses additional terms to clarify meaning. � An operational defi nition describes how examples of a term are to be measured or identifi ed. Main Points clarifi cation by example 31 Key Terms 1. Here are three examples of research questions. How would you rank them on a scale of 1 to 5 (5 5 highest, 1 5 lowest) for clarity? for signifi cance? Why? a. How many students in the sophomore class signed up for a course in driver training this semester? b. Why do so many students in the district say they dislike English? c. Is inquiry or lecture more effective in teaching social studies? 2. How would you defi ne humanistically oriented classroom? 3. Some terms used frequently in education, such as motivation, achievement, and even learning, are very hard to defi ne clearly. Why do you suppose this is so? 4. How might the term excellence be defi ned operationally? Give an example. 5. �Even the clearest of defi nitions does not always guarantee meaningful communication.� Is this really true? Why or why not? 6. We would argue that operational defi nitions should always be accompanied by constitutive defi nitions. Would you agree? Can you think of an instance when this might not be necessary? 7. Most researchers do not believe that research efforts based primarily on personal interest warrant investigation. Do you agree in all cases? Can you think of a possible exception? For Discussion constitutive defi nition 30

empirical referent 28 operational defi nition 31

36 PART 2 The Basics of Educational Research www.mhhe.com/fraenkel8e Research Exercise 2: The Research Question Using Problem Sheet 2, restate the research problem you listed in Research Exercise 1 in a sentence or two, and then formulate a research question related to this problem. Now list all the key terms in the question that you think are not clear and need to be defi ned. Defi ne each of these terms both constitutively and operationally, and then state why you think your question is an important one to study. Problem Sheet 2 The Research Question 1. My (restated) research problem is: ________________________________________ ____________________________________________________________________ 2. My research question(s) is/are: ___________________________________________ ____________________________________________________________________ 3. The following are key terms in the problem or question that are not clear and thus need to be defi ned: 4. Here are my constitutive defi nitions for these terms: __________________________ ____________________________________________________________________ ____________________________________________________________________ ____________________________________________________________________ 5. Here are my operational defi nitions for these terms: ___________________________ ____________________________________________________________________ ____________________________________________________________________ ____________________________________________________________________ 6. My rationale for investigating this question/problem ( why I would argue that it is an important question to investigate) is as follows: ______________________________

____________________________________________________________________ ____________________________________________________________________ a. b. c. d. e. f. An electronic version of this Problem Sheet that you can fi ll in and print, save, or e-mail is available on the Online Learning Center at www.mhhe.com/ fraenkel8e.

OBJECTIVES Studying this chapter should enable you to: � Describe briefl y why a literature review is of value. � Name the steps a researcher goes through in conducting a review of the literature. � Describe briefl y the kinds of information contained in a general reference and give an example of such a source. � Explain the difference between a primary and a secondary source and give an example of each type. � Explain what is meant by the phrase �search term� and how it differs from the term �descriptor,� and how both terms are used in literature searches. � Conduct both a manual and electronic search of the literature on a topic of interest to you after a small amount of �hands-on� computer time and a little help from a librarian. � Write a summary of your literature review. � Explain what a meta-analysis is. The Defi nition and Value of a Literature Review Types of Sources Steps Involved in a Literature Search Defi ne the Problem as Precisely as Possible Look through One or Two Secondary Sources Select the Appropriate General Reference Tools Formulate Search Terms Search Using General Reference Tools Doing a Computer Search Obtain Primary Sources Writing the Literature Review Report Researching the World Wide Web Locating and Reviewing the Literature 3 �Hey! There�s Joe. Taking it easy, as usual.� �No, he says he�s reviewing the literature for his Biology class!�

38 their intended area of study but also to be able to evaluate this work in terms of its relevance to the research question of interest. Types of Sources A researcher needs to be familiar with three basic types of sources as he or she begins to search for information related to the research question. These terms apply both to computerized searching (online or electronic) as well as manual searching (using print/paper tools to locate print/paper sources). Regardless of the tools involved, the search process is similar. 1. General reference tools are the sources researchers often refer to fi rst. In effect, they tell where to look to locate other sources�such as articles, books, reports, and other documents�that deal directly with the research question. General reference tools are usually either indexes, which list the author, title, and place of publication of articles and other materials, or abstracts , which give a brief summary or The Defi nition and Value of a Literature Review A literature review is an assessment of a body (or bodies) of literature that pertains to a specifi c question. A literature review is helpful in several ways. It not only helps researchers glean the ideas of others interested in a particular research question (through important research fi ndings and theories), but it also lets them read about the results of similar or related studies. Literature reviews also give researchers ideas about areas where more research needs to be done. They refer to these as �gaps� in the literature. In fact, a detailed literature review is usually required of master�s and doctoral students when they design a thesis. In some graduate programs, students must propose theses or dissertations that address gaps in the existing literature. Thus researchers often weigh information from a literature review in light of their own interests and situation. There are two important points here: Researchers need to be able not only to locate other work dealing with Go to the Online Learning Center at www.mhhe.com/fraenkel8e to: � Read the Guide to Electronic Research Go to your online Student Mastery Activities book to do the following activities: � Activity 3.1: Library Worksheet � Activity 3.2: Where Would You Look? � Activity 3.3: Do a Computer Search of the Literature INTERACTIVE AND APPLIED LEARNING After, or while, reading this chapter: A fter a career in the military, Phil Gomez is in his fi rst year as a teacher at an adult school in Logan, Utah. He teaches United States history to students who did not graduate from high school but who now are trying to obtain a diploma. He has learned the hard way, through trial and error, that there are a number of techniques that simply put students to sleep. He sincerely wants to be a good teacher, but he is having trouble getting his students interested in the subject. As he is the only history teacher in the school, the other teachers are not of much help. He wants to get some ideas, therefore, about other approaches, strategies, and techniques that he might use. He decides to do an Internet search to see what he can fi nd out about effective strategies for teaching high school history. His fi rst search yields

12,847 hits! Phil is overwhelmed and at a loss for which sources to view. Should he look at books? Journal articles? Web sites? Government documents? Unpublished reports? Where should he look for the most valid resources? And how could his searching be done more systematically? In this chapter, you will learn some answers to these (and related) questions. When you have fi nished reading, you should have a number of ideas about how to conduct a systematic or �planned� search of the educational literature.

CHAPTER 3 Locating and Reviewing the Literature 39 Researchers who seek information systematically on a given topic would refer fi rst to one or more general reference tools to locate primary and secondary sources of value. For a quick overview of the problem at hand, secondary sources are probably the best bet. For detailed information about the research that others have done, primary sources should be consulted. Today, most researchers search the literature electronically by means of a personal computer. In the past, before the rise of the Internet and the World Wide Web, most searches were done manually. Manual searching (using print/paper tools to locate print/ paper sources) is now used primarily by library users interested in locating rare or historical sources. However, some professors also require students to conduct manual searches because not all sources are available electronically. Although the interface may be different, both processes are the same in terms of the steps involved. Steps Involved in a Literature Search The following steps are involved in a literature search: 1. Defi ne the research problem as precisely as possible. 2. Look at relevant secondary sources (these can include research reviews). 3. Select and peruse one or two appropriate general reference works. 4. Formulate search terms (key words or phrases) pertinent to the problem or question of interest. 5. Search for relevant primary sources using appropriate general reference tools. 6. Obtain and read relevant primary sources, and note and summarize key points in the sources. Let us consider each of these steps in some detail. DEFINE THE PROBLEM AS PRECISELY AS POSSIBLE The fi rst thing a researcher needs to do is to state the research question as specifi cally as possible. General questions such as �What sorts of teaching methods work well in urban classrooms?� or �How can a principal be a more effective leader?� are too fuzzy to be of much help when looking through a general reference. The question of interest should be narrowed down to a specifi c area of annotation of various publications, as well as their author, title, and place of publication. Historically, indexes and abstracts were only available in paper format, but since the advent of computers and the Internet, most libraries have access to indexes and abstracts through online databases containing electronic indexes, abstracts, dictionaries, and encyclopedias. For example, the Current Index to Journals in Education (CIJE) and Resources in Education (RIE), the indexes most frequently used by researchers in education, are no longer available as distinct publications in paper format. Instead, since 2002 the information they contain is now only available electronically in ERIC (Education Resources Information Center), an online database of education research and information sponsored by the U.S. Department of Education and the Institute of Education Sciences. (We�ll show you how to do an ERIC search of the literature later in this chapter.) Similarly,

Psychological Abstracts , the general reference most commonly used by researchers in psychology, is now only available through PsycINFO , a computer database compiled by the American Psychological Association (APA) that includes abstracts and bibliographic citations for journal articles, evaluation reports, conference papers and proceedings, speeches, and the like. 2. Primary sources are publications in which researchers report the results of their studies directly to the reader. Most primary sources in education are journals, such as the Journal of Educational Research or the Journal of Research in Science Teaching . These journals are usually published monthly or quarterly, and the articles in them typically report on a particular research study. Most college libraries pay for subscriptions to online collections that provide registered students free access to a wide array of online databases, including electronic journals that allow users to download full text articles on demand. 3. Secondary sources refer to publications in which authors describe the work of others. The most common secondary sources in education are textbooks. A textbook in educational psychology, for example, may describe several studies as a way to illustrate various ideas and concepts in psychology. Other commonly used secondary sources include educational encyclopedias, research reviews (usually peerreviewed journals that publish literature reviews on specifi c topics), and yearbooks.

40 PART 2 The Basics of Educational Research www.mhhe.com/fraenkel8e Review of Research in Education: Published yearly, each volume contains surveys and syntheses of research on important topics written by leading educational researchers. RRE is currently available online in ERIC. Subject Guide to Books in Print (current edition): Each of the above sources contains reviews of research on various topics of importance in education. There are many topics, however, that have not been treated in a recent review. If a research question deals with such a topic, the best chance for locating information discussing research on the topic lies in recent books on the subject. The best source for identifying books that might discuss research on a topic is the current edition of Books in Print , available in both print and electronic formats. In addition, many professional associations and organizations have published handbooks of research in their fi elds. These include: � Handbook of Reading Research � Handbook of Research on Curriculum � Handbook of Research on Educational Administration � Handbook of Research on Mathematics Teaching and Learning � Handbook of Research on School Supervision � Handbook of Research on Multicultural Education � Handbook of Research on Music Teaching and Learning � Handbook of Research on Social Studies Teaching and Learning � Handbook of Research on Teacher Education � Handbook of Research on the Teaching of English � Handbook of Research on the Education of Young Children Each of these handbooks includes a current summary of research dealing with important topics related to its particular fi eld of study. To locate a handbook in paper format, use your library catalog; to locate a handbook in electronic format, use your library catalog, database list, and/or electronic journal list. Other places to look for books on a topic of interest are the library catalog and the curriculum department (for textbooks) in the library. Education Index and PsycINFO also list newly published professional books in their fi elds. concern. More specifi c questions, therefore, might be, �Is discussion more effective than showing a video clip in motivating students to learn social studies concepts?� or �What sorts of strategies do principals at highperforming elementary schools use to improve faculty and staff morale?� A serious effort should be made to state the question so that it focuses on the specifi c issue for investigation. LOOK THROUGH ONE OR TWO SECONDARY SOURCES Once the research question has been stated in specifi c terms, it is a good idea to look through one or two secondary sources to get an overview of previous work that has been done on the problem. This needn�t be a monumental chore nor take an overly long time to complete. The main intent is to get some idea of what is already

known about the problem and of some of the other questions that are being asked. Researchers may also get an idea or two about how to revise or improve the research question. Here are some of the most commonly used secondary sources in educational research: Encyclopedia of Educational Research (current edition online only): Contains brief summaries of over 300 topics in education. Excellent source for getting a brief overview of the problem. The last print edition was published in 2004. Handbook of Research on Teaching (latest edition published in 2001) : Contains longer articles on various aspects of teaching. Most are written by educational researchers who specialize in the topic on which they are writing. National Society for the Study of Education (NSSE) Yearbooks: Published every year, these yearbooks deal with recent research on various topics. Each book usually contains from 10 to 12 chapters dealing with various aspects of the topic. The society, which was founded in 1901 and dissolved in 2008, has continued to publish its yearbooks without interruption as part of the Teachers College Record at Columbia University. Review of Educational Research: Published four times a year by the American Educational Research Association (AERA), this journal contains reviews of research and extensive bibliographies on various topics in education, and is available online through ERIC.

CHAPTER 3 Locating and Reviewing the Literature 41 in ERIC, the number is ED + a six-digit number (see Figure 3.2). ERIC documents (EDs) are documents produced by state departments of education, fi nal reports of federally funded research projects, reports from school districts, commissioned papers written for government agencies, and other published and unpublished documents. Abstracts and bibliographic information are usually provided on all documents. Many reports that would otherwise never be published are reported in ERIC , which makes this an especially valuable resource to use. PsycINFO: PsycINFO, the electronic version of the now-ceased Psychological Abstracts , is a database containing summaries and citations of literature in the fi eld of psychology dating back to the 1800s (and even some records from the 1700s and 1600s). Produced by the American Psychological Association (APA), the largest and most distinguished professional association of psychologists and scientists in the world, PsycINFO contains abstracts and bibliographic data of journal articles, book chapters, books, technical reports, and dissertations in the social and behavioral sciences, and is available on the association�s APA PsycNET. Two additional general reference tools that sometimes provide information about educational research are the following: Exceptional Child Education Resources (ECER) online database: ECER is a bibliographic database produced by the Council for Exceptional Children (its print publication ceased in 2004). ECER provides information about exceptional children from more than 200 journals. Using a format similar to ERIC , it provides author, subject, and title indexes. It is worth consulting if a research topic deals with exceptional children, since it covers several journals not searched for in ERIC . Social Science Citation Index (SSCI): Another type of citation and indexing service, SSCI offers the forward search, a unique feature that can be helpful to researchers. When a researcher has found an article that contains information of interest, he or she can locate the author�s name in the SSCI to fi nd out the names of other authors who have cited this same article and the journals in which their articles appeared. These additional SELECT THE APPROPRIATE GENERAL REFERENCE TOOLS After reviewing a secondary source to get a more informed overview of the problem, researchers should have a clearer idea of exactly what to investigate. At this point, it is a good idea to look again at the research question to see if it needs to be rewritten in any way to make it more focused. Once satisfi ed, researchers can select one or two general references to help identify particular journals or other primary sources related to the question. Of the many general reference tools a researcher can consult, here is a list of the ones most commonly used: Education Index: Since 2004, this online-only publication indexes articles from more than 300

educational publications. This electronic index includes three separate databases: (a) Education Index Retrospective, which covers the period 1929�1982; (b) Education Index, which contains sources from 1983 to the present; and, (c) Education Full Text, which has abstracts and full-text articles dating back to 1983. Education Resources Information Center (ERIC): ERIC is an online database of education research and information sponsored by the U.S. Department of Education and the Institute of Education Sciences. It includes indexes and abstracts, journal articles, reports, and other documents in education, counseling, and related social science disciplines. In 2002, after the major education indexes formerly known as the Current Index to Journals in Education (CIJE) and Resources in Education (RIE) merged and ceased print publication, ERIC began to offer access to their content electronically. Today, ERIC provides citations and direct access to more than 1.3 million bibliographic sources, including citations to articles from more than 750 journals, as well as unpublished documents including curriculum guides, conference papers, and research reports. Although full-text access to all current education-related sources is not yet possible, ERIC provides users with abstracts and exact citation information about the source. Publication information usually includes the following: article title, author, journal name, page, and volume and issue numbers, as well as an ERIC identifying number. For ERIC journal articles (EJs), the number is EJ 1 a six-digit number (see Figure 3.1); for nonjournal article documents

42 PART 2 The Basics of Educational Research www.mhhe.com/fraenkel8e original research and hence are valuable sources for literature reviews. ProQuest Dissertations and Theses: Proquest maintains a digital library that has more than 1.4 million titles, including abstracts and full text fi les of doctoral dissertations and masters� theses submitted by more than 1,000 graduate schools and universities in North America, Europe, and Asia. Coverage includes the complete text of most dissertations and theses completed from 1988 to the present, in addition to abstracts of theses and dissertations dating back to 1861 (see Figure 3.3). articles may also be of interest to the researcher, particularly in compiling a references list for an annotated bibliography (a list of sources on a topic with brief summaries) or a literature review. He or she can determine what additional books and articles were cited by these other authors and thus conceivably obtain information that otherwise might be missed. Most libraries offer SSCI online searching since it is available as part of the Web of Science database (currently published by Thomson Scientifi c). Most doctoral dissertations and many masters� theses in education report on Figure 3.1 Excerpt from ERIC Journal Article

CHAPTER 3 Locating and Reviewing the Literature 43 and the like. The researcher would then select the appropriate general reference tool. Indexes and abstracts, whether in electronic or print/ paper format, are designed to present uniform access to citation information. Each citation�whether in a database, index, or abstract�contains information unique to the citation (i.e., author, title, publication date, etc.). In addition, each citation is assigned vocabulary words that help categorize related articles. In most databases the assigned vocabulary words are referred to as subject terms or subject headings , and in ERIC these terms are referred to specifi cally as descriptors . Learning which subject terms, subject headings, or descriptors are used in a specifi c system can help researchers more easily identify all related articles on a particular subject or topic. If using an online database to search the literature, to retrieve results the researcher would enter search terms in the search boxes provided. (see Figure 3.4). Using a FORMULATE SEARCH TERMS Once a general reference work has been selected, researchers need to formulate some search terms �words or phrases they can use to locate primary sources. Search terms are the most important words in the problem statement. Take, for example, the research question, �Do students taught by a teaching team learn more than students taught by an individual teacher?� What are the most important words�the key terms�in this question? Remember that a researcher conducts a literature search to fi nd out what other research has been done with regard to�and what others think about�the research question of interest. The key term in this question, therefore, is teaching team. This term, plus other similar or synonymous terms, should be listed. Possibilities here might include team teaching, joint teaching, cooperative teaching, collaboration and teaching, Figure 3.2 Excerpt from ERIC Document

44 PART 2 The Basics of Educational Research www.mhhe.com/fraenkel8e libraries and most public libraries. Many state departments of education also provide access to online education databases, as do some county offi ces of education and some large school systems. The database most commonly used by educational researchers is ERIC, which can be searched electronically back to 1966. Other databases include PsycINFO , Exceptional Child Education Resources , and ProQuest Dissertations & Theses . More than 200 other specialized databases in other subject areas exist; to fi nd out more about them, contact a nearby college or university library and ask for assistance from a reference librarian. paper/print tool, the user would look at a list of subject terms that match the search terms listed in the resource in order to fi nd a list of relevant citations. He or she would then select the articles that seem to bear on the research topic. SEARCH USING GENERAL REFERENCE TOOLS Although there is no magic formula to follow, many researchers in education turn to library resources and other information resources available online. An online search of the literature can be performed in databases available through the Web sites of almost all university Figure 3.3 Excerpt from ProQuest Dissertations and Theses

CHAPTER 3 Locating and Reviewing the Literature 45 research question: �What sorts of questioning techniques help students understand historical concepts most effectively?� Decide on the Extent of the Search. The researcher must now decide how many references to obtain. For a review for a journal article, a researcher might decide to review only 20 to 25 fairly recent references. For a more detailed review, such as a master�s thesis, perhaps 30 or 40 might be reviewed. For a very exhaustive review, as for a doctoral dissertation, as many as 100 or more references might be searched. Decide on the Database. As we mentioned earlier, many databases are available, but the one most commonly used is ERIC. Subject terms or headings may Doing a Computer Search To illustrate the steps involved in online searching, we will next describe an actual search conducted using the ERIC database. Define the Problem as Precisely as Possible. The research problem should be stated as specifi cally as possible so that relevant descriptors can be identifi ed. A broad statement of a problem such as, �How effective are questioning techniques?� is much too general. It is liable to produce an extremely large number of references, many of which probably will be irrelevant to the researcher�s question of interest. For the purposes of our search, therefore, we posed the following Figure 3.4 Excerpt from Education Full Text

46 PART 2 The Basics of Educational Research www.mhhe.com/fraenkel8e questioning techniques or the descriptor term inquiry, as well as either the descriptor term history instruction or the descriptor term civics instruction. For our search, we chose the following descriptors: questioning techniques, concept teaching, and history instruction. We also considered using a number of related terms. These included inquiry, teaching methods, and learning processes under questioning techniques, and concept formation and cognitive development under concept teaching. Upon refl ection, however, we decided not to include teaching methods or learning processes , as we felt these terms were too broad to apply specifi - cally to our research question. We also decided not to include cognitive development for the same reason. Conduct the Search. After determining which descriptors to use, the next step is to enter them into the database and let it do its work. Figure 3.6 presents a summary of the search results. As you can see, we asked the database fi rst to search for questioning techniques (search no. 1), followed by history instruction (search no. 2), followed by a combination (search no. 3) of these two descriptors (note the use of the Boolean operator and ). This resulted in a total of 5,044 references for questioning techniques, 18,447 references for history instruction, and 107 for a combination of these two descriptors. We then asked the database to search just for the descriptors concept and teaching (search no. 4). This produced a total of 34,349 references. Because we were particularly interested in concept teaching as applied to questioning techniques and history instruction, however, we asked the database to search for a combination (search no. 5) of these three descriptors (again note the use of the operator and ). This produced 12 references. At this point, the 12 references can be printed, saved to a hard drive or portable device, or e-mailed. If the initial effort of a search produces too few references, the search can be broadened by using more general descriptors. Thus, we might have used the term social studies instruction rather than history instruction had we not obtained enough references in our search. Similarly, a search can be narrowed by using more specifi c descriptors. For example, we might have used the specifi c descriptor North American history rather than the inclusive term history. Documenting Citation Information. Once a researcher has located references, he or she needs to document the information found and prepare it for later use. If any articles are found that deal with some not be applicable to different databases, although many do overlap. In ERIC, as noted earlier, subject terms are referred to as �descriptors.� We used the ERIC database in this example, as it is still the best for searches involving educational topics. Select Search Words and Discover Descriptors. Researchers often begin a search in ERIC using keywords they use to describe their topic. The researcher types these keywords in ERIC to tell the computer what to search for. The selection of keywords is somewhat of an art form. If the keyword is too general, too many references may be located, many of which are likely to be irrelevant. If the keyword is too narrow, too few references will be located, and many

of those applicable to the research question may be missed. Furthermore, if the keyword used is not the same or similar to the descriptors used by the system to describe the topic, then few or no search results will be found. For ERIC users, the ERIC thesaurus provides a list of descriptors commonly used in their databases. Search results in ERIC also list descriptors and subject terms associated with individual citations. Keywords and descriptors can be used singly or in various combinations to locate references. Certain key words, called Boolean operators, enable the retrieval of terms in various combinations. The most commonly used Boolean operators are and and or. For example, by asking a computer to search for a single keyword or descriptor such as inquiry, all references containing this term would be selected. By connecting two keywords or descriptors with the word and, however, researchers can narrow the search to locate only the references that contain both of the descriptors. Asking the computer to search for questioning techniques and history instruction would narrow the search because only references containing both keywords or descriptors would be located. On the other hand, by using the word or, a search can be broadened, since any references with either one of the keywords or descriptors would be located. Thus, asking the computer to search for questioning techniques or history instruction would broaden the search because references containing either one of these terms would be located. Figure 3.5 illustrates the results of using these Boolean operators. All sorts of combinations are possible. For example, a researcher might ask the computer to search for questioning techniques or inquiry and history instruction or civics instruction. For a reference to be selected, it would have to contain either the descriptor term

CHAPTER 3 Locating and Reviewing the Literature 47 (like index cards) or newer tools (like EndNote, Ref- Works, and Zotero) to take notes and record and organize your citations, the important thing is to take care to record the bibliographic information completely and accurately. Nothing is more annoying than trying to fi nd an incorrect reference listed in a bibliography. Searching ERIC. Researchers today fi nd it easier and quicker to search reference tools (as well as most other references) online. In addition to compiling abstracts and citations, many articles are now instantly available for downloading as Portable Document Format (PDF) fi les. Another important feature of ERIC is that more than one descriptor can be searched at the same time. Suppose a researcher were interested in fi nding information on the use of questioning in teaching science. A search of the ERIC database using the descriptors aspect of the researcher�s topic, the author, title, page, publication date, and publication source should be recorded. Several output options are available, including saving, e-mailing, printing, and exporting references . Researchers should choose the option that contains the most information, as it might prove useful later. Standard information would include citation information, the abstract, and in some cases the complete full text of the document. Many databases, including some versions of ERIC provide options to save, e-mail, or print citations in specifi c formats, including APA, MLA (Modern Language Association), University of Chicago, and other academic citation styles used to cite references in the literature. Researchers must develop their own process for saving and documenting information found while completing their research. Whether using classic tools Select questioning techniques and history instruction (Combine 1 and 2) Decreases output Narrow search Broader search Select questioning techniques or history instruction (Combine 1 or 2) Increases output Questioning techniques (Set 1) History instruction (Set 2) History instruction (Set 2) Questioning techniques (Set 1) Figure 3.5 Venn Diagrams Showing the Boolean Operators AND and OR

48 PART 2 The Basics of Educational Research www.mhhe.com/fraenkel8e 1. Before 1965: search Education Index. 2. From 1966 to 1968: search ERIC and Education Index. 3. From 1969 to the present: Search ERIC, Education Index, and other education databases. OBTAIN PRIMARY SOURCES After searching the general references, researchers will have a list of bibliographic citations. The next step is to locate each of the sources listed, then read and take notes on those relevant to the research problem. There are two major types of primary sources to be familiar with in this regard�journals and reports. questioning techniques and science would reveal the abstracts and citations of several articles. Notice that the word source indicates where to fi nd the articles if the researcher wants to read all or part of them�one is in the journal Research in Science and Technological Education and the other in International Journal of Science Education. Searching PsycINFO. Searching through Psyc- INFO is similar to searching through ERIC . As in ERIC, key words or subject terms and descriptors can be used singularly or in various combinations to locate references. All articles of interest can then be located in the identifi ed journals. The best strategy for a thorough search is probably as follows. Figure 3.6 Summary of Search Results

CHAPTER 3 Locating and Reviewing the Literature 49 in education databases . An author�s address can sometimes be found in the directory of a professional association, such as the American Educational Research Association Biographical Membership Directory or Who�s Who in American Education. If a reprint or book cannot be obtained directly from the author, it may be possible to obtain it from another library in the area through interlibrary loan, a service that nearly all libraries provide. By entering information into a database, a library user can fi nd out within seconds which libraries within a designated area have a particular book or journal. Using Secondary Sources to Locate Primary Sources. Although the principal goal of a literature review is to assess original reports of empirical research that have been published mainly in academic journals, secondary sources can be useful. Locating published review articles�either literature reviews or metaanalyses, which we describe in the next section�can give students a sense of the depth and breadth of the literature related to a topic. They only need to add the keyword �review� to the list of search terms or descriptors used in their initial search of the literature to produce extensive reference lists (or bibliographies) contained in research reviews�a technique called �branching.� In addition, landmark studies are considered highly signifi - cant by experts for understanding a topic. While reading a review, a student may come across the name of a researcher repeatedly and/or an explicit statement by the author that a study is especially important. In this case, the student should add the landmark source(s) to his or her reading list for inclusion in the literature review. Researchers often discuss the fi ndings of their empirical studies in terms of the theoretical literature. Understanding the major theories and theorists� particularly landmark theorists�that have contributed to the literature on a topic is paramount for preparing a comprehensive review. This can be done by adding the term �theory� as a keyword or descriptor in an electronic database search. In general, major theorists conduct research studies themselves, some of which are considered landmark studies. Including a discussion of the major theories and theorists in a literature review provides important contextual information for the review reader to better understand the empirical research fi ndings to be evaluated. Meta-Analysis. In academic journals, the literature reviews accompanying research reports are usually Professional Journals. Many journals in education publish reports of research. Some publish articles on a wide range of educational topics, while others limit what they print to a particular specialization, such as social studies education. Most researchers become familiar with the journals in their fi eld of interest and look them over from time to time. Examples of such journals include the American Educational Research Journal, Child Development, Educational Administration Quarterly, Journal of Educational Research, Journal of Research in Science Teaching, Reading Research Quarterly, and Theory and Research in Social Education. Reports. Many important research fi ndings are fi rst

published as reports. Almost all funded research projects produce a fi nal report of their activities and fi ndings when research is completed. In addition, each year many reports on research activities are published by the United States government, by state departments of education, by private organizations and agencies, by local school districts, and by professional associations. Furthermore, many individual researchers report on their recent work at professional meetings and conferences. Most reports are abstracted in ERIC and are available as PDF fi les. Many papers, such as the reports of presidential task forces, national conferences, or specially called professional meetings, are published only as reports. They are usually far more detailed than journal articles and much more up to date. Also, they are not copyrighted. Reports are a very valuable source of up-to-date information that could not be obtained anywhere else. Locating Primary Sources. Most primary source material is located in academic journals, since that is where most of the research fi ndings in education are published. Although more and more journals are available online through library Web sites, to conduct a thorough search of relevant primary sources, it may be necessary to search manually for sources only available in print/paper format. Depending on the layout of the library, users can often go right to the stacks where print/paper journals are shelved alphabetically. In some libraries, however, only the librarian can retrieve the journals. A problem that every researcher faces at one time or another is that a needed book or journal is not available in the library. When this is the case, it can usually be obtained directly from the author. Addresses of authors (e-mail and conventional) are often listed

Evaluating Primary Sources. When all the desired journal articles and documents are gathered together, the review can begin. It is a good idea to begin with the most recent articles and work backward. The reason for this is that most of the more recent articles will cite the earlier articles and thus provide a quick overview of previous work. How should an article be read? While there is no one perfect way to do this, here are some helpful suggestions: Read the abstract or the summary fi rst. This will tell whether the article is worth reading in its entirety. Record the bibliographic data and take notes on the article using your preferred note-keeping tool (electronic, manual, or a hybrid). Almost all research articles follow approximately the same format. They usually include an abstract; an introductory section that presents the research problem or question and reviews other related studies; the objectives of the study or the hypotheses to be tested; a description of the research procedures, including the subjects studied, the research design, and the data collection instruments and tools used; the results or fi ndings of the study; a summary (if there is no abstract); and the researcher�s conclusions. Also, make sure to use the branching technique discussed earlier by perusing the references (or bibliography) listed at the end of the article to help you locate other relevant sources. Be as brief as possible in taking notes, yet do not exclude anything that might be important to describe later in the full review. For each of these steps, the following should be noted. 1. Problem: State it clearly. 2. Hypotheses or objectives: List them exactly as stated in the article. 3. Procedures: List the research methodology used (experiment, case study, and so on), the number of subjects and how they were selected, and the required to be brief. Unfortunately, this largely prevents much in the way of critical analysis of individual studies. Furthermore, traditional literature reviews basically depend on the judgment of the reviewer and hence are prone to subjectivity. In an effort to moderate this subjective tendency and reduce the time required in reviewing many studies on the same topic, the concept of meta-analysis has been developed. 1 In the simplest terms, when a researcher does a meta-analysis, he or she averages the results of the selected studies to get an overall index of outcome or relationship. The fi rst requirement is that results be described statistically, most commonly through the calculation of effect sizes and correlation coeffi cients (we explain both later in the text). In one of the earliest studies using meta-analysis, 2 375 studies on the effectiveness of psychotherapy were analyzed, leading to the conclusion that the average client was, after therapy, appreciably better off than the average person not in therapy. As you might expect, this methodology has had widespread appeal in many disciplines�to date, hundreds of meta-analyses have been done. Critics raise a number of objections, some of which have been at least partly remedied by statistical adjustments. We think the most serious criticisms are that a poorly designed

study counts as much as one that has been carefully designed and executed and that the evaluation of the meaning of the fi nal index remains a judgment call, although an informed one. The former objection can be remedied by deleting �poor� studies, but this brings back the subjectivity meta-analysis was designed to mitigate. It is clear that meta-analysis is here to stay; we agree with those who argue that it cannot replace an informed, careful review of individual studies, however. In any event, the literature review should include a search for relevant meta-analysis reports, as well as individual studies. � The hypotheses of the study (if there are any) � The methodology the researcher used � A description of the subjects involved � The results � The conclusions � The particular strengths, weaknesses, and limitations of the study What a Good Summary of a Journal Article Should Contain � The problem being addressed � The purpose of the study RESEARCH TIPS 50

CHAPTER 3 Locating and Reviewing the Literature 51 to locating and evaluating your sources, the next steps involve organizing, integrating, and synthesizing these sources. This process is inductive and often leads students to believe they are regressing, rather than progressing. As researchers and professors who have written and supervised many student literature reviews, our advice to you is to be patient and fl exible! The process may appear as if you are going backward (not forward), but this is part of the larger process of discovery involved in doing research. Part of this process involves reformulating the main question that guides your literature review oftentimes in the process of reviewing the research . For example, let�s say you begin your literature search interested in the topic of mixed-ability grouping in elementary school classrooms. Your initial query is �What do we know about heterogeneous grouping in elementary schools?� After reviewing the research and familiarizing yourself with the vocabulary and background related to the topic, your revised question becomes �What are the effects of inclusion practices on elementary school student achievement?� This restated question is much improved because it (a) includes key terms or vocabulary currently used by researchers in the fi eld; (b) helps to clarify the purpose and scope of the literature kind of instrument (questionnaire, tally sheet, and so on) used. Make note of any unusual techniques employed. 4. Findings: List the major fi ndings. Indicate whether the objectives of the study were attained and whether the hypotheses were supported. Often the fi ndings are summarized in a table. 5. Conclusions: Record or summarize the author�s conclusions. Note your disagreements with the author and the reasons for such disagreement. Note strengths or weaknesses of the study that make the results particularly applicable or limited with regard to your research question. See Figure 3.7 for an example of a completed note card. Writing the Literature Review Report Once you have located and evaluated the sources relevant to your topic, you are ready for the fi nal steps in preparing your review of the literature. In addition Figure 3.7 Sample Note Card

52 PART 2 The Basics of Educational Research www.mhhe.com/fraenkel8e is essential. There are many ways to format reference lists, but the one outlined in the Publication Manual of the American Psychological Association (2009) is particularly easy to use. RESEARCHING THE WORLD WIDE WEB The World Wide Web (WWW) is part of the Internet, a vast reservoir of information on all sorts of topics in a wide variety of areas. Prior to 1993, the Internet was barely mentioned in the research literature. Today, it cannot be ignored. Despite the fact that ERIC and (on occasion) PsycINFO remain the databases of choice when it comes to research involving most educational topics, researching the Web should also be considered. Space prevents us from describing the Internet in detail, but we do wish to point out some of its important features. Using a Web browser (the computer program that lets you gain access to the WWW), a researcher can fi nd information on almost any topic with just a few clicks of the mouse button. Some of the information on the Web has been classifi ed into indexes , which can be easily searched by going from one category to another. In addition, several search engines are available that are similar in many respects to those we used in our search of the ERIC database. Let us consider both indexes and search engines in a bit more detail. Indexes. Indexes group Web sites together under similar categories, such as Australian universities, London art galleries, and science laboratories. This is similar to what libraries do when they group similar kinds of information resources together. The results of an index search will be a list of Web sites related to the topic being searched. Figure 3.8 shows the Yahoo! Web page, a particularly good example of an index. If a researcher is interested in fi nding the site for a particular university in Australia, for example, he or she should try using an index. Indexes often provide an excellent starting point for a review of the literature. This is especially true when a researcher does not have a clear idea for a research question or topic to investigate. Browsing through an index can be a profi table source of ideas. Felden offers an illustration: For a real-world comparison, suppose I need some household hardware of some sort to perform a repair; I may not always know exactly what is necessary to do the job. review; and (c) examines the topic more deeply by exploring a possible relationship between inclusion practices (the presumed cause) and student achievement (the presumed outcome). The process of evaluating, integrating, and synthesizing relevant sources in a literature review involves analyzing and categorizing the literature into major topics and subtopics. There are many strategies for organizing the structure of a review. A common one is to include summary tables to provide readers with an overview of the research related to, for example: (a) defi nitions of key constructs and measures; (b) differing research methods used in studies examining the same research question or phenomenon; and (c) key study characteristics and fi ndings. Literature reviews may differ in format, but they typically consist of the following

fi ve parts. 1. The introduction briefl y describes the nature of the research problem and states the research question. The researcher also explains in this section what led him or her to investigate the question and why it is an important question to investigate. 2. The body of the review briefl y reports what others have found or thought about the research problem. Related studies are usually discussed together, grouped under subheadings (to make the review easier to read). Major studies are described in more detail, while less important work can be referred to in just a line or two. Often this is done by referring to several studies that reported similar results in a single sentence, somewhat like this: �Several other small-scale studies reported similar results (Avila, 2009; Brown, 2006; Cartwright, 2009; Davis & Lim, 2008; Martinez, 2007).� 3. The summary of the review ties together the main threads revealed in the literature reviewed and presents a composite picture of what is�and is not� known or thought to date. Findings may be tabulated to give readers some idea of how many other researchers have reported identical or similar fi ndings or have similar recommendations. 4. Any conclusions the researcher feels are justifi ed based on the state of knowledge revealed in the literature should be included. What does the literature suggest are appropriate courses of action to take to try to solve the problem? And what are other important research questions that should be examined? 5. A reference list (or bibliography) with full bibliographic data for all sources mentioned in the review

CHAPTER 3 Locating and Reviewing the Literature 53 of the words on them. The search results obtained are usually ranked in order of relevancy (i.e., the number of times the researcher�s search terms appear in a document or how closely the document appears to match one of the key words submitted as query terms by the researcher). A search engine like Google will search for and fi nd the individual pages of a Web site that match a researcher�s search, even if the site itself has nothing to do with what the researcher is looking for. As a result, one usually has to wade through an awful lot of irrelevant information. Felden gives us an example: Returning to the hardware store analogy, if I went to the store in search of some screws for my household project and employed an automatic robot instead of using my native cunning to browse the (well-arranged) aisles, the robot could conceivably return (after perusing the entire store) with everything that had a screw in it somewhere. The set of things would be a wildly disparate collection. It would include all sorts of boxes of screws, some of them maybe even the kind I was looking for, but also a wide array of I may have a broken part, which I can diligently carry to a hardware store to try to match. Luckily, most hardware stores are fairly well organized and have an assortment of aisles, some with plumbing supplies, others with nails and other fasteners, and others with rope, twine, and other materials for tying things together. Proceeding by general category (i.e., electrical, plumbing, woodworking, etc.), I can go to approximately the right place and browse the shelves for items that may fi t my repair need. I can examine the materials, think over their potential utility, and make my choice. 3 Search Engines. If one wants more specifi c information, such as biographical information about George Orwell, however, one should use a search engine, because it will search all of the contents of a Web site. Search engines such as Google or the Librarians� Index to the Internet use software programs (sometimes called spiders or Web crawlers ) that search the entire Internet, looking at millions of Web pages and then indexing all Figure 3.8 The Yahoo! Web Page Source: Reproduced with permission of YAHOO! Inc. © 2007 by Yahoo! Inc. YAHOO! and the YAHOO! logo are trademarks of Yahoo! Inc.

54 PART 2 The Basics of Educational Research www.mhhe.com/fraenkel8e � Lack (sometimes) of credibility: Anyone can publish something on the Internet. As a result, much of the material one fi nds there may have little, if any, credibility. � Uncertain reliability: It is so easy to publish information on the Internet that it often is diffi cult to judge its worth. One of the most valuable aspects of a library collection is that most of its material has been collected carefully. Librarians make it a point to identify and select important works that will stand the test of time. Much of the information one fi nds on the WWW is ill-conceived or trivial. � Ethical violations: Because material on the Internet is so easy to obtain, there is a greater temptation for researchers to use the material without citation or permission. Copyright violation is much more likely than with traditional material. � Undue reliance: The amount of information available on the Internet has grown so rapidly in the last few years that some researchers may be misled to think they can fi nd everything they need on the Internet, thereby causing them to ignore other, more traditional sources of information. In searching the WWW, then, here are a few tips to get the best search results: 5 Many of these would apply to searching ERIC or PsycINFO as well. � Use the most specifi c key word you can think of. Take some time to list several of the words that are likely to appear on the kind of Web page you have in mind. Then pick the most unusual word from your list. For example, if you�re looking for information about efforts to save tiger populations in Asia, don�t use tigers as your search term. You�ll be swamped with Web pages about the Detroit Tigers, the Princeton Tigers, and every other sports team that uses the word tigers in its name. Instead, try searching for a particular tiger species that you know to be on the endangered list� Bengal tiger or Sumatran tiger or Siberian tiger. 6 � Make it a multistep process. Don�t assume that you will fi nd what you want on the fi rst try. Review the fi rst couple of pages of your results. Look particularly at the sites that contain the kind of information you want. What unique words appear on those pages? Now do another search using just those words. � Narrow the fi eld by using just your previous results. If the keywords you choose return too much information, try a second search of just the results you obtained in your fi rst search. This is sometimes referred other material, much of it of no use for my project. There might be birdhouses of wood held together with screws, tools assembled with screws, a rake with a screw fastening its handle to its prongs. The robot would have done its job properly. It had been given something to match, in this case a screw, and it went out and did its work effi ciently and thoroughly, although without much intelligence. 4 To be satisfi ed with the results of a search, therefore, one needs to know what to ask for and how to phrase the request to increase the chances of getting what is desired. If a researcher wants to fi nd out information about universities, but not English universities, for example, he or she should ask specifi cally in that way.

Thus, although it would be a mistake to search only the Web when doing a literature search (thereby ignoring a plethora of other material that often is so much better organized), it has some defi nite advantages for some kinds of research. Unfortunately, it also has some disadvantages. Here are some of each: Advantages of Searching the World Wide Web � Currency: Many resources on the Internet are updated very rapidly; often they represent the very latest information about a given topic. � Access to a wide variety of materials: Many resources, including works of art, manuscripts, even entire library collections, can be reviewed at leisure using a personal computer. � Varied formats: Material can be sent over the Internet in different formats, including text, video, sound, and animation. � Immediacy: The Internet is �open� 24 hours a day. Information can be viewed on one�s own computer and can be examined as desired or saved to a hard drive or disk for later examination and study. Disadvantages of Searching the World Wide Web � Disorganization: Unfortunately, much of the information on the Web is not well organized. It employs few of the well-developed classifi cation systems used by libraries and archives. This disorganization makes it an absolute necessity for researchers to have good online searching skills. � Time commitment: There is always a need to search continually for new and more complete information. Doing a search on the WWW often (if not usually) can be quite time-consuming and (regretfully) sometimes less productive than doing a search using more traditional sources.