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Research Methods-I BSCS-SEM-VI #WaqarSeyal P a g e | 1
b
[email protected] BSCS-308 IIIIII JAN-2014IIIIII PAGES-64IIIIIIII
RESEARCH
METHODS-I
BS COMMUNICATION STUDIES
Research Methods-I BSCS-SEM-VI #WaqarSeyal P a g e | 2
OBJECTIVES
This course will give the students an insight into the basic principles of
scientific research. Students will further be sensitized with the methods,
techniques and other relevant concepts to investigate the media related
phenomena in contemporary society.
COURSE CONTENT
1. Defining Research
2. Concepts Of Research In Mass Communication
3. Steps In Research
4. Elements Of Research
Concepts
Constructs
Variables
Research question
Hypothesis
5. Measurement Levels And Scale
6. Kinds Of Scientific Research
Qualitative and Quantitative
Basic and Applied
Historical Research
Observational
Descriptive Research
Correlation Research
Experimental Research
7. Sampling And Its Techniques
8. Literature Review And Its Techniques
9. Ethics In Research
Code Cr. Hrs Semester Year
BSCS-308 3 VI 3
Research Methods-I BSCS-SEM-VI #WaqarSeyal P a g e | 3
TABLE OF CONTENTS COURSE CONTENT .......................................................................................................................................... 2
1. DEFINING RESEARCH ........................................................................................................................ 4
2. CONCEPTS OF RESEARCH IN MASS COMMUNICATION ........................................................... 7
3. STEPS IN RESEARCH .......................................................................................................................... 7
4. ELEMENTS OF RESEARCH .............................................................................................................. 10
4.1 CONCEPTS ...................................................................................................................................... 10
4.2 CONSTRUCTS.................................................................................................................................. 11
4.3 VARIABLES ...................................................................................................................................... 12
4.4 RESEARCH QUESTION .................................................................................................................... 14
4.5 HYPOTHESIS ................................................................................................................................... 15
5. NON DIRECTIONAL HYPOTHESIS ............................................................................................. 16
6. CAUSAL HYPOTHESIS.................................................................................................................. 16
5. MEASUREMENT LEVELS AND SCALE ......................................................................................... 17
6. KINDS OF SCIENTIFIC RESEARCH ................................................................................................ 24
6.1 QUALITATIVE AND QUANTITATIVE ................................................................................................ 24
6.2 BASIC AND APPLIED ....................................................................................................................... 27
6.3 HISTORICAL RESEARCH .................................................................................................................. 29
6.4 OBSERVATIONAL ............................................................................................................................ 31
6.5 DESCRIPTIVE RESEARCH ................................................................................................................. 35
6.6 CORRELATION RESEARCH .............................................................................................................. 37
6.7 EXPERIMENTAL RESEARCH ............................................................................................................ 40
7. SAMPLING AND ITS TECHNIQUES ............................................................................................... 46
8. LITERATURE REVIEW AND ITS TECHNIQUES ........................................................................... 53
9. ETHICS IN RESEARCH ...................................................................................................................... 59
MISCELLANEOUS ..................................................................................................................................... 62
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1. DEFINING RESEARCH DEFINITIONS Definitions by Dr. Robert V. Williams:
1. Thorough and systematic inquiry or investigation into a subject in order to discover facts or principles.
2. A studious inquiry or examination, especially a critical investigation . . . having as its aim the discovery of new facts and their correct interpretation, the revision of accepted conclusions,
theories, or laws in the light of new discovered facts, or the practical application of such
conclusions, theories or laws.
An attempt to discover new or collate old facts etc by the scientific study of a subject or by a
course of critical investigation. [Oxford Concise Dictionary]
Research may be defined as a collaborative activity by means of which a given phenomenon in
reality is studied in an objective manner, with a view to establishing a valid understanding of that
phenomenon.
Research involves the use of carefully prescribed methods and procedures to systematically
observe, collect, and analyze empirical data.
A systematic investigation (i.e., the gathering and analysis of information) designed to develop or contribute to generalizable knowledge.
The Advanced Learners Dictionary of Current English lays down the meaning of research as a careful investigation or inquiry specially through search for new facts in any branch of
knowledge. Redman and Mory define research as a systematized effort to gain new knowledge. According to Clifford Woody research comprises defining and redefining problems, formulating
hypothesis or suggested solutions; collecting, organising and evaluating data; making deductions
and reaching conclusions; and at last carefully testing the conclusions to determine whether they
fit the formulating hypothesis.
D. Slesinger and M. Stephenson in the Encyclopedia of Social Sciences define research as the manipulation of things, concepts or symbols for the purpose of generalising to extend, correct or
verify knowledge, whether that knowledge aids in construction of theory or in the practice of an
art.
Martyn Shuttleworth - "In the broadest sense of the word, the definition of research includes any
gathering of data, information and facts for the advancement of knowledge."
Creswell who states - "Research is a process of steps used to collect and analyze information to
increase our understanding of a topic or issue". It consists of three steps: Pose a question, collect
data to answer the question, and present an answer to the question.
The Merriam-Webster Online Dictionary : "a studious inquiry or examination; especially :
investigation or experimentation aimed at the discovery and interpretation of facts, revision of
accepted theories or laws in the light of new facts, or practical application of such new or revised
theories or laws"
Research can be defined to be search for knowledge or any systematic investigation to establish
facts.
A detailed study of a subject, especially in order to discover (new) information or reach a (new)
understanding.
New knowledge is created through research. Research is based on primary and secondary sources,
often together with original data collected via research "instruments" (surveys, interviews,
questionnaires, "focus groups," etc.) to produce new knowledge on a particular topic.
In addition to primary sources and original instruments, secondary sources are used to provide an
overview of existing published knowledge on a topic, and possible current debates about the topic.
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The background provided by secondary sources provides a contextual background and establishes
how the new knowledge described in a paper differs from what is already known.
The purpose of all research is to describe and explain variance in the world. Variance is simply the
difference; that is, variation that occurs naturally in the world or change that we create as a result of a
manipulation.
All research focuses on "solving problems" at minimum, as it concerns FIN-1, answering the defined research question(s). Otherwise, research addresses the perceived "problem" of missing or
inadequate information on a particular topic.
The emphasis and methodology of research may differ between different fields and disciplines,
particularly between the Sciences and the Humanities. However, most fields share the following
concerns:
Discovering the relevant "facts" of an event, issue, procedure, or problem;
Reviewing and evaluating contrasting explanations for the topic being researched, especially
explanations which may differ from what the current research has concluded;
Reviewing the consensus (or lack of it) of the research findings among researchers;
Disseminating the findings and conclusions for critical review.
GENERAL CHARACTERISTICS OF RESEARCH
The following characteristics may be gathered from the definitions of Research
1. It gathers new knowledge or data from primary or first-hand sources. 2. It places emphasis upon the discovery of general principles. 3. It is an exact systematic and accurate investigation. 4. It uses certain valid data gathering devices. 5. It is logical and objective. 6. The researcher resists the temptation to seek only the data that support his hypotheses. 7. The researcher eliminates personal feelings and preferences. 8. It endeavours to organise data in quantitative terms. 9. Research is patient and unhurried activity. 10. The researcher is willing to follow his procedures to the conclusions that may be unpopular and
bring social disapproval.
11. Research is carefully recorded and reported. 12. Conclusions and generalisations are arrived at carefully and cautiously.
PURPOSE/ OBJECTIVES/ FUNCTIONS OF RESEARCH/ What Does
Research Do?
To gain familiarity with a phenomenon or to achieve new insights into it.
To portray accurately the characteristics of a particular individual, situation or a group.
To determine the frequency with which something occurs or with which it is associated with something else.
To test a hypothesis of a causal relationship between variables. to learn something,
to gather evidence.
Advancement of Human Knowledge Solution to a larger problem Collate and synthesize existing information Extracting new meaning to extend human knowledge of the physical, biological, or social world beyond what is already
known.
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THE FUNCTIONS OF RESEARCH
The main function of research is to improve research procedures through the refinement and extension of knowledge.
The Researches should contribute to the theory and practice of study studies simultaneously. It should have the image of a helpful mechanism which can be used by researcher/research-scholar
in one way or the other, for the improvement of the process.
Exploration
A great deal of social research is conducted to explore a topic or familiarize oneself with a topic. This
typically occurs when a researcher becomes interested in a new topic or when the subject of study
itself is relatively new. Often times, exploratory research is done through the use of focus groups or
small group discussions, which are frequently used in market research.
Exploratory studies are typically done for three purposes: to satisfy the researchers curiosity and desire for better understanding, to test the feasibility of undertaking a more extensive study, and to
develop the methods to be employed in any subsequent studies.
Description
Another major purpose of social research is to describe situations and events. The researcher observes
and then describes what he or she observed. One great example of descriptive social research is the
Pakistani Census. The goal of the census is to describe accurately and precisely several characteristics
of the Pakistani population, including race/ethnicity, age, sex, household size, income, etc.
Explanation
A third major purpose of social research is to explain things. While descriptive studies attempt to
answer the what, when, where, and how, explanatory studies attempt to answer the why. For example,
reporting the crime rates of different cities is descriptive. Identifying the variables that explain why
some cities have higher crime rates than others involves explanation. Likewise, reporting the
frequency of church attendance is descriptive, but reporting why some people attend church while
others dont is explanatory.
IMPORTANCE
The main purpose and role of research is to help plan and gather information on a certain topic
before carrying it out. It helps to test and create a theory on a certain things and with the
information given, to gather and generate a topic to find out more on it.
Research inculcates scientific and inductive thinking and it promotes the development of logical
habits of thinking and organisation.
The role of research in several fields of applied economics, whether related to business or to the
economy as a whole, has greatly increased in modern times.
Research provides the basis for nearly all government policies in our economic system.
Research has its special significance in solving various operational and planning problems of
business and industry.
Research is equally important for social scientists in studying social relationships and in seeking
answers to various social problems.
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2. CONCEPTS OF RESEARCH IN
MASS COMMUNICATION Media Research involves the collection of data about the various advertising media, surveying consumers on their media preferences and habits, and carrying out primary and
secondary research on effectiveness of each medium for selling particular types of products.
The Mass Communication Research (Research
of Mass Communication) is a stream that breaks in
the middle of the twentieth century with the
primary objective of analyzing the social, cultural
and psychological messages that are transmitted
by the mass media and public reactions to media
proposals in order to get the keys to drive the
behavior of the masses.
Advertising Research
Market Research
PR Research
Media Effects
Functional, Critical Research
Ratings (TRP)
Target Audience
It supports audience. It supports media & trend analysis. It does message testing It does issue monitoring, forecasting & evaluating. It often provides essential data for effectively presenting information. To formulate strategy. To gauge success. To test messages. To size up competition. To get publicity. To sway opinion.
3. STEPS IN RESEARCH STEPS IN RESEARCH PROCESS
1. IDENTIFY AND FORMULATE RESEARCH PROBLEM Articulate a research question
What exactly is being researched and why; what the relevance or importance is; what questions will
be addressed, and an overview of what conclusions will be drawn.
There are two types of research problems, viz., those which relate to states of nature and those which
relate to relationships between variables. At the very outset the researcher must single out the problem
he wants to study, i.e., he must decide the general area of interest or aspect of a subject-matter that he
would like to inquire into.
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The statement of the problem is the focal point of your research. It should state what you will be
studying, whether you will do it through experimental or non-experimental investigation, and what the
purpose of your findings will be.
The first step in the process is to identify a problem or develop a research question.
It is one of the first statements made in any research paper and, as well as defining the research area,
should include a quick synopsis of how
the hypothesis was arrived at.
A quantitative experimental design uses deductive
reasoning to arrive at a testable hypothesis.
Qualitative research designs use inductive reasoning to
propose a research statement.
An anthropologist might find references to a relatively
unknown tribe in Papua New Guinea.
Through inductive reasoning, she arrives at the
research problem and asks,
How do these people live and how does their culture relate to nearby tribes?
She has found a gap in knowledge, and she seeks to fill it, using a qualitative case study, without a
hypothesis.
The Bandura Bobo Doll Experiment is a good example of using deductive reasoningto arrive at a
research problem and hypothesis.
2. REVIEWING THE LITERATURE 3. DEVELOPMENT OF WORKING HYPOTHESES
o Conceptualization and operationalization of concepts and variables
o Defining Terms
o Clarify and narrow down the Problem
Many times the initial problem identified in the first step of the process is too large or broad in scope.
In step 3 of the process, the researcher clarifies the problem and narrows the scope of the study. This
can only be done after the literature has been reviewed. The knowledge gained through the review of
literature guides the researcher in clarifying and narrowing the research project.
Terms and concepts are words or phrases used in the purpose statement of the study or the description
of the study. These items need to be specifically defined as they apply to the study. Terms or concepts
often have different definitions depending on who is reading the study. To minimize confusion about
what the terms and phrases mean, the researcher must specifically define them for the study.
4. PREPARING THE RESEARCH DESIGN
The overall design of a research project consists of its methods and procedures. Research design can
be described as Qualitative or Quantitative in approach. It is also possible to have a mixture of the
two approaches, both in overall design and in the specific methods used in the investigation.
Selltiz et al., in their classical book on research methodology, define research design in the following
manner: A research design is the arrangement of conditions for collection and analysis of data in a manner that aims to combine relevance to the research purpose with economy in procedure.
5. RESEARCH METHODOLOGY o Make instrumental plan o Theoretical framework
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In this section the purpose and research questions or hypotheses are re-stated, and the exact nature of
what is being researched and how (population and sampling) is defined, along with what
instrumentation was used (copies of instruments should be included in Appendices). Also in this
section are details on the procedure and time frame of the research, the analysis plan, the validity and
reliability of the data used, the author's assumptions which are based on the research, and possible
limitations to these
assumptions, or other
conclusions.
Research methodology is a
way to systematically solve the
research problem. In it we
study the various steps that are
generally adopted by a
researcher in studying his
research problem along with
the logic behind them.
The plan for the study is
referred to as the
instrumentation plan. The
instrumentation plan serves as
the road map for the entire
study, specifying who will participate in the study; how, when, and where data will be collected; and
the content of the program.
6. DEFINING POPULATION AND DETERMINING SAMPLE DESIGN
The preparation of the research design, appropriate for a particular research problem, involves usually
the consideration of the following:
the means of obtaining the information;
the availability and skills of the researcher and his staff (if any);
explanation of the way in which selected means of obtaining information will be organized and
the reasoning leading to the selection;
the time available for research; and
the cost factor relating to research, i.e., the finance available for the purpose.
7. COLLECTION OF DATA o Collect, record, classify, and control data.
Once the instrumentation plan is completed, the actual study begins with the collection of data. The
collection of data is a critical step in providing the information needed to answer the research
question. Every study includes the collection of some type of datawhether it is from the literature or from subjectsto answer the research question. Data can be collected in the form of words on a survey, with a questionnaire, through observations, or from the literature.
8. ANALYZING THE DATA AND INTERPRETING THE RESULTS
The researcher finally has data to analyze so that the research question can be answered. In the
instrumentation plan, the researcher specified how the data will be analyzed. The researcher now
analyzes the data according to the plan. The results of this analysis are then reviewed and summarized
in a manner directly related to the research questions.
Significant test
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To test a hypothesis, quantitative research uses significance tests to determine which hypothesis is
right. The significance test can show whether the null hypothesis is more likely correct than the
research hypothesis. Research methodology in a number of areas like social sciences depends heavily
on significance tests.
9. COMMUNICATING THE RESULTS / CONCLUSION Suggest possible application of the findings and conclusions.
A summary of the nature and application of the "new knowledge" represented in your paper. Also
included here are possible contraindications of your conclusions, along with proposed further research
based on your findings (and the possible contraindications).
Discussion of 'Limitations': This section is increasingly a part of research articles published in
academic journals. It is a separate section of the paper which describes real or potential faults with the
methodology, research material, or other factors that could have influenced the research findings.
Limitations: Limitations are shortcomings, conditions or influences that cannot be controlled by the
researcher that place restrictions on your methodology and conclusions.
10. CITE PROPERLY AND GIVE CREDIT FOR SOURCES OF IDEAS.
4. ELEMENTS OF RESEARCH
4.1 CONCEPTS What is a concept? A general notion, conception, comprehension, A thing formed in the mind,
A directly conceived or intuited object of thought
An idea of something formed by mentally combining all its characteristics or particulars
A general idea derived or inferred from specific instance or occurrence.
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Concepts may be defined as the most elementary symbolic constructions by means of which people classify or categorize reality.
A concept is a notion about a natural phenomenon. For example "mass" is a concept having different
notions to different people. To a scientist mass is a term for the physical appearance of a matter but to
a social scientist mass is general public. So is the apprehension about the term "medium" to
a layman it is about the size but to a media person it is the channel and tool of communication.
Concepts are abstract symbols (words) that represent some phenomena, idea, or entity. Concepts can
be very abstract (romantic love) or they can be more concrete (income).
Concepts are important for at least two reasons:
First, they simplify the research process by combining particular characteristics, objects, or people
into more general categories.
Second, concepts simplify communication among those who have a shared understanding of them.
Researchers use concepts to organize their observations into meaningful summaries and to
transmit this information to others.
4.2 CONSTRUCTS DEFINITIONS
A construct is the combination of two concepts. A construct is deliberately and consciously invented or created for a specific scientific purpose. It is a concept or idea that may be abstract or concrete or even observable. Constructs are mental abstractions that we used to express
the ideas, people, organisations, events and/or objects/things that we are interested in.
A construct is a collection of other related behaviours that are associated in a meaningful way. A construct is a concept that has three distinct characteristics:
1. First, it is an abstract idea that is usually broken down into dimensions represented by lower level concepts.
2. Second, because of its abstraction, a construct usually cannot be observed directly. 3. Third, a construct is usually designed for some particular research purpose so that its exact
meaning relates only to the context in which it is found.
We often refer to constructs as mental abstractions because seldom are constructs directly
observable (e.g., we cannot directly observe depression, even though we may associate depression
with signs such as a person that often cries, engages in self-harm, has mood swings, and so forth).
Since constructs are very broad and abstract, conceptual clarity has become one of the cornerstones
of good research.
Constructs provide a common language and shared meaning that help us to communicate about
things clearly and precisely. Constructs need to be expressed (i.e., made explicit) in a way that is
clear, precise, and non-ambiguous.
EXAMPLES For example "Mass" is a concept, "Media" is again a concept and the "Mass Media" is a
construct which give a third meaning as a whole phrase.
For example, "intelligence" is an idea, a part of what that makes us human and is made up of lots
of smaller ideas. Intelligence is a construct based on observation of presumably intelligent and less
intelligent behaviours. For example, "intelligence" is made up of several behaviours such verbal
ability, quantitative ability, spatial ability, mechanical reasoning, inductive thinking and so forth.
The table below provides some examples of different types of constructs:
Types of constructs
Examples
Ideas Ageism, sexism, racism, self-esteem, poverty, social capital, trust, philanthropy,
morality, tolerance, air pollution, genetic engineering, marriage..
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People Age, gender, ethnicity, height, obesity, energy, muscle soreness, fatigue
Organizations Financial performance, corporate social responsibility, firm survival,
organizational culture, service quality, corporate governance
Events famine, Jihad, secularism
Objects/Things Sun, hurricanes, tsunamis, trees, flowers..
4.3 VARIABLES DEFINITION
It is the changing value of quantity or quality of a thing or concept is called variable.
Concepts that represent phenomena that can take on different values, quantities, or intensities are
called variables. A variable is something that varies. A variable is a construct that is deliberately and
consciously invented or adopted for a special scientific purpose.
An event or behavior that has at least two values.
TYPES 1. INDEPENDENT VARIABLE It is the variable whose value is independent to change and normally it is denoted by "x" and is placed
horizontally on the graph with its negative values on
the opposite side if required. For example "speed" , Media exposure.
An independent variable (IV) (treatment variable, precdictor variables, input variable) is the variable
that is presumed can cause a change in the dependent variable.
Dependent variables are observed and their values presumed to depend on the effects of the
independent variables. In other words, the dependent variable is what the researcher wishes to explain.
Causes are called INDEPENDENT VARIABLES. If one variable truly causes a second, the cause is
the independent variable. Independent variables are often also called explanatory
variables or predictors.
There are two types of independent variables: Active and attribute.
a. ATTRIBUTE: level or score of the variable is brought to the experiment by the subject, usually as a natural characteristic such as sex, age, etc. An attribute variable is a variable where we do not
alter the variable during the study. For example, we might want
to study the effect of age on weight. We cannot change a
person's age, but we can study people of different ages and
weights.
b. ACTIVE: the level of the IV is manipulated by the experimenter. If the independent variable is an active variable
then we manipulate the values of the variable to study its affect
on another variable.
2. DEPENDENT VARIABLE It is the variable whose value is dependent
to change and normally it is denoted by "y" and is placed vertically on
the graph with its negative values on the opposite side if required. For example "distance",
Socialization from media etc.
Independent variables are systematically varied by the researcher.
Effects are called DEPENDENT VARIABLES. We explain what has caused dependent variables.
Dependent variables are also sometimes called outcome, output, result, response or criterion variables.
This is the variable that is affected by the independent variable.
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3. INTERVENING VARIABLE/ Extraneous It is the variable that effects the relation of the independent and dependent variable. For example in `
"quality of the road" is an intervening variable.
Uncontrolled or unobserved variables that may account for variation in the Dependent Variable.
This is a variable that probably does influence the relationship between the independent and
dependent variables, but it is one that we do not control or manipulate. Extraneous variables which
influence the study in a negative manner are often called confounding variables.
4. MEDIATING VARIABLES
A mediating variable is defined as one that links between the independent and the dependent variable.
Thus, an mediating variable is part of a causal chain:
INDEPENDENT VARIABLE -------> MEDIATOR VARIABLE ------> DEPENDENT VARIABLE
Mediator variables inform us about causal sequences or chains, thus explaining the causal process of a
phenomenon.
EXAMPLE: educational level -----> occupational type -----> income level
5. Control variable:
Any variable that may affect Dependent Variable should be controlled; that is, measured and
accounted for statistically or held constant (age, gender, socioeconomic status, etc., could be control
variables)
A control variable is a variable that effects the dependent variable. When we "control a variable" we
wish to balance its effect across subjects and groups so that we can ignore it, and just study the
relationship between the independent and the dependent variables. You control for a variable by
holding it constant, e.g., keep humidity the same, and vary temperature, to study comfort levels.
CONCEPTUAL VARIABLES:
CONCEPTUAL VARIABLES are what you think the entity really is or what it means. Conceptual
variables are about abstract constructs. YOU DO NOT DISCUSS MEASUREMENT AT THIS
STAGE! Examples include "achievement motivation" or "endurance" or "second language".
OPERATIONAL VARIABLES:
On the other hand, OPERATIONAL VARIABLES (sometimes called "operational definitions")
are how you actually measure this entity, or the concrete operations, measures, or procedures that you
use to measure the concept in practice. If you use a Stanford-Binet to measure intelligence or a bar
code scan to assess the popularity of musical artists, those are operational variables.
CATEGORICAL AND CONTINUOUS VARIABLE A variable can be either a categorical variable (nominal variable) or a continuous
variable (ordinal variable).
Continuous Variable: A continuous variable has numeric values such as 1, 2, 3, 4, etc. The relative
magnitude of the values is significant (e.g., a value of 2 indicates twice the magnitude of 1). Examples
of continuous variables are blood pressure, height, weight, income, age, scores on a history test.
Categorical Variable: In the case of the variable "gender" there are only 2 values; i.e. male and
female and is called categorical or nominal variable
In the case of the variable "gender" there are only 2 values, i.e. male (1) and female (0). When
variables have only two values, they are called dichotomous variables. Variables with more than two
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values are called polytomies. Examples are Religion - Islam, Christianity, Buddhism. Hinduism and
Socio-economic status - high, medium & low.
Discrete variables: Variables that usually consist of whole number units or categories and are made
up of chunks or units that are detached and distinct from one another.
Continuous variables: Variables that usually fall along a continuum and allow for fractional
amounts.
4.4 RESEARCH QUESTION A research question summarizes the key relationship between an independent and dependent variable
youll focus on in your report.
A research question proposes a relationship between two or more variables. Just as the title states, it
is structured in form of a question.
A research question is a formal statement of the goal of a study. The research question states clearly
what the study will investigate or attempt to prove. The research question is a logical statement that
progresses from what is known or believed to be true (as determined by the literature review) to that is
unknown and requires validation.
TYPES OF QUESTIONS
There are three basic types of questions that research projects can address:
1. DESCRIPTIVE. When a study is designed primarily to describe what is going on or what exists. Public opinion polls that seek only to describe the proportion of people who hold
various opinions are primarily descriptive in nature. For instance, if we want to know what
percent of the population would vote for a Democratic or a Republican in the next presidential
election, we are simply interested in describing something.
A descriptive research question seeks to identify and describe some phenomenon.
An example: What is the ethnic breakdown of patients seen in the emergency room for non-
emergency conditions.
2. RELATIONAL. When a study is designed to look at the relationships between two or more variables. A public opinion poll that compares what proportion of males and females say they
would vote for a Democratic or a Republican candidate in the next presidential election is
essentially studying the relationship between gender and voting preference.
3. CAUSAL. When a study is designed to determine whether one or more variables (e.g., a program or treatment variable) causes or affects one or more outcome variables. If we did a
public opinion poll to try to determine whether a recent political advertising campaign
changed voter preferences, we would essentially be studying whether the campaign (cause)
changed the proportion of voters who would vote Democratic or Republican (effect).
A relationship question asks if two or more phenomena are related in some systematic manner.
For example: If one increases his level of physical exercise does muscle mass also increase?
4. A differences research question asks if there are differences between groups on some phenomenon.
For example: Do patients who receive massage experience more relief from sore muscle pain than
patients who take a hot bath?
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4.5 HYPOTHESIS DEFINITION
An hypothesis is a specific statement of prediction. It describes in concrete (rather than theoretical) terms what you expect will happen in your study.
A hypothesis is: A specified testable expectation about empirical reality that follows from a more general proposition; more generally, an expectation about the nature of things derived from a
theory. It is a statement of something that ought to be observed in the real world if the theory is
correct. A hypothesis represents a declarative statement, a sentence instead of a question, of the cause-
effect relationship between two or more variables.
A hypothesis is an informed and educated prediction or explanation about something.
In research, a hypothesis is a suggested explanation of a phenomenon.
A prediction regarding the outcome of a study that often involves the relationship between two
variables.
A hypothesis may describe whether there is a relationship, no relationship predicted at all, the causal direction of the relationship, the mechanics (how) of the relationship, and may even
specify the form of the relationship.
EXAMPLES
An external threat raises team cohesiveness. Children with an encyclopedia in their home will achieve higher scores on the intelligence
Test.
Fast walking will lower Galvanic Skin Response scores.
TYPES 1. NULL HYPOTHESIS The hypothesis predicting that no difference exists between the groups being compared.
A null hypothesis is a hypothesis which a researcher tries to disprove. Normally, the null hypothesis
represents the current view/explanation of an aspect of the world that the researcher wants to
challenge.
This is the conventional approach to making a prediction. It involves a statement that says there is no
relationship between two groups that the researcher compares on a certain variable. The hypothesis
may also state that there is no significant difference when different groups are compared with respect
to a particular variable. For example, "There is no difference in the academic performance of high
school students who participate in extracurricular activities and those who do not participate in such
activities" is a null hypothesis. In many cases, the purpose of the null hypothesis is to allow the
experimental results to contradict the hypothesis and prove the point that there is a definite
relationship.
In classical statistics inference testing, it is mathematically the easiest to disprove a null hypothesis,
which is sometimes written as Ho. A null hypothesis will assert that:
There is no relationship among two or more variables (EXAMPLE: the correlation between
educational level and income is zero)
Or that two or more populations or subpopulations are essentially the same (EXAMPLE: women
and men have the same average science knowledge scores.)
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If your prediction specifies a direction, and the null therefore is the no difference prediction and the
prediction of the opposite direction, we call this a one-tailed hypothesis.
When your prediction does not specify a direction, we say you have a two-tailed hypothesis.
2. RESEARCH HYPOTHESIS/ ALTERNATIVE HYPOTHESIS The hypothesis that the researcher wants to support and that predicts a significant difference exists
between the groups being compared.
Research methodology involves the researcher providing an alternative hypothesis, a research
hypothesis, as an alternate way to explain the phenomenon.
If the null hypothesis is rejected, typically an alternative hypothesis (usually styled HA:) is accepted.
Usually the alternative hypothesis will assert that a relationship among two or more variables exists or
that two or more subpopulations differ in some respect. A direction to the relationship (e.g., external
threat raises team cohesion) may be specified. Directional alternative hypothesis are specified in
advance of data collection procedures.
The researcher tests the hypothesis to disprove the null hypothesis, not because he/she loves the
research hypothesis, but because it would mean coming closer to finding an answer to a specific
problem. The research hypothesis is often based on observations that evoke suspicion that the null
hypothesis is not always correct.
3. DESCRIPTIVE
Descriptive hypotheses ask a specific question regarding some phenomenon. Descriptive hypotheses
are always phrased in the form of a question regarding some aspect of the research question. Usually a
descriptive hypothesis does not include an active independent variable.
4. DIRECTIONAL HYPOTHESIS
Directional hypotheses are never phrased as a question, but always as a statement. Directional
hypotheses always express the effect of an independent on a dependent variable. When we use an
independent variable, a directional hypothesis is usually needed.
Investigator bases this hypothesis on the trends apparent from previous research on this topic.
Example: High school students who participate in extracurricular activities have a lower GPA than those who do not participate in such activities." Such hypotheses provide a definite direction to the
prediction.
5. NON DIRECTIONAL HYPOTHESIS
Certain hypothesis statements convey a relationship between the variables that the researcher
compares, but do not specify the exact nature of this relationship. This form of hypothesis is used in
studies where there is no sufficient past research on which to base a prediction.
6. CAUSAL HYPOTHESIS
Some studies involve a measurement of the degree of influence of one variable on another. In such
cases, the researcher states the hypothesis in terms of the effect of variations in a particular factor on
another factor.
ONE-TAILED HYPOTHESIS (DIRECTIONAL HYPOTHESIS): An alternative hypothesis in
which the researcher predicts the direction of the expected difference between the groups.
TWO-TAILED HYPOTHESIS (NON-DIRECTIONAL HYPOTHESIS): An alternative
hypothesis in which the researcher predicts that the groups being compared differ but does not predict
the direction of the difference.
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The logic of hypothesis testing is based on these two basic principles:
The formulation of two mutually exclusive hypothesis statements that, together, exhaust all possible outcomes
The testing of these so that one is necessarily accepted and the other rejected.
ERRORS IN RESEARCH
Logically, there are two types of errors when drawing conclusions in research:
1. Type 1 error is when we accept the research hypothesis when the null hypothesis is in fact correct.
2. Type 2 error is when we reject the research hypothesis even if the null hypothesis is wrong.
THE DIFFERENCE BETWEEN RESEARCH QUESTIONS & HYPOTHESIS
HYPOTHESIS RESEARCH QUESTION Definitions A hypothesis is defined as an educated
guess.
A research question is simply the researcher
wondering about the world.
Structure Hypothesis are written as statements
preceded with the words "I predict."
As its name suggests, research questions are
always written as questions.
Before
Writing
Before writing a hypothesis, the researcher
must determine what others have
discovered about this subject.
On the other hand, a research question requires
less preparation, but focus and structure is
critical.
Writing
Conclusions
the researcher will write whether the
hypothesis was correct or incorrect,
followed by an explanation of the results.
The researcher using only a research question
will write the answer to the question, followed by
the findings of the research.
5. MEASUREMENT LEVELS AND
SCALE Measurement is the assignment of numerals to objects or events according to rules.
Level of measurement refers to the way that a variable is measured.
The level of measurement refers to the relationship among the values that are assigned to the
attributes for a variable.
In statistics and research methodology, levels of
measurement or scales of measure are types of
data that arise in the theory of scale
types developed by the psychologist Stanley Smith
Stevens.
Stevens proposed his typology in a
1946 Science article titled "On the theory of scales
of measurement". In that article, Stevens claimed
that all measurement in science was conducted
using four different types of scales that he called
"nominal," "ordinal," "interval," and "ratio,"
unifying both "qualitative" and "quantitative"
Before we can conduct a statistical analysis, we need to measure our dependent variable. Exactly how
the measurement is carried out depends on the type of variable involved in the analysis.
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Although procedures for measurement differ in many ways, they can be classified using a few
fundamental categories. In a given category, all of the procedures share some properties that are
important for you to know about. The
categories are called "scale types," or just
"scales.
The level of measurement for a particular
variable is defined by the highest category
that it achieves.
It's important to recognize that there is a
hierarchy implied in the level of
measurement idea. At lower levels of
measurement, assumptions tend to be less restrictive and data analyses tend to be less sensitive. At
each level up the hierarchy, the current level includes all of the qualities of the one below it and adds
something new. In general, it is desirable to have a higher level of measurement (e.g., interval or
ratio) rather than a lower one (nominal or ordinal).
Why is Level of Measurement Important?
First, knowing the level of measurement helps you decide how to interpret the data from that variable.
Second, knowing the level of measurement helps you decide what statistical analysis is appropriate on
the values that were assigned.
Being familiar with the level of measurement of the variables in your data set is crucial because they
will help determine what statistical procedure you use. Not every statistical operation can be used
with every variable. The type of procedure used depends on the variables level of measurement.
SCALE TYPES WITH THEIR PROPERTIES ACCORDING TO STANLEY SMITH
STEVENS
Nominal scale Ordinal scale Interval scale Ratio scale
Logical/
math
operations
+
-
<
>
=
Examples: Dichotomous
and
non-
dichotomous
Variable name
(data values)
Dichotomous:
Gender
(male vs. female)
Non-dichotomous:
Nationality
(American/Chinese/etc)
Dichotomous:
Health
(healthy vs. sick),
Truth
(true vs. false),
Beauty
(beautiful vs.ugly)
Non-dichotomous:
Opinion
('completely agree'/
Date
(from 1457 BC
to AD 2013)
Latitude
(from +90 to
90)
Age
(from 0 to 99
years)
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'mostly agree'/
'mostly disagree'/
'completely
disagree')
Measure of
central
tendency
Mode Median Arithmetic Mean Geometric Mean
Qualitative or
Quantitative Qualitative Qualitative Quantitative Quantitative
1. NOMINAL SCALE
The nominal type, sometimes also called the qualitative type, differentiates between items or subjects
based only on their names or (meta-)categories and other qualitative classifications they belong to.
A nominal scale, as the name implies, is simply some placing of data into categories, without any
order or structure.
The lowest level is the nominal scale. This may be thought of as the naming level.
With nominal scales, you can tell whether two cases or instances fall into the same category or into
different categories. Thus, you can sort all cases into mutually exclusive, exhaustive categories.
It refers to quality more than quantity. A nominal level of measurement is simply a matter of
distinguishing by name, e.g., 1 = male, 2 = female. They are categories or classifications.
Because the different categories (for instance, males and females) vary in quality but not quantity,
nominal variables are often called qualitative variables. An important feature of nominal variables is
that there is no hierarchy or ranking to the categories.
No data is captured that can place the measured object on any kind of scale say, for example, on a
continuum from one to ten. Coding of nominal scale data can be accomplished using numbers, letters,
labels, or any symbol that represents a category into which an object can either belong or not belong.
This classifies individuals, companies, products, brands or other entities into categories where no
order is implied.
EXAMPLES
In research activities a YES/NO scale is nominal. It has no order and there is no distance between
YES and NO.
When we ask subjects to name their marital status, they will respond with wordsnot numbersthat describe their status such as married, single, divorced, etc. Notice that nominal data do not put subjects in any particular order. There is no logical basis for saying that one category such
as single is higher or lower than any other. Examples of nominal scales include: Zodiac sign, Gender, Birth country and Religious affiliation
(or denomination), POLITICAL ORIENTATION, Language, Genre
A physical example of a nominal scale is the terms we use for colours. The underlying spectrum is
ordered but the names are nominal.
Nominal time of day: AM&PM - categories; no additional information.
STATISTICAL OPERATIONS
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The nominal scale forms the basis for such analyses as Analysis of Variance (ANOVA) because those
analyses require that some category is compared to at least one other category.
cross-tabulation - with chi-square
Central tendency: The mode, i.e. the most common item, is allowed as the measure of central tendency for the nominal type. On the other hand, the median, i.e. the middle-ranked item,
makes no sense for the nominal type of data since ranking is not allowed for the nominal type.
2. ORDINAL SCALE
At this level we put subjects in order from high to low.
Ordinal scales involve the ranking of individuals, attitudes or items along the continuum of the
characteristic being scaled.
With ordinal scales, the categories themselves can be rank-ordered from highest to lowest.
Ordinal refers to order in measurement. An ordinal scale indicates direction, in addition to providing
nominal information. Low/Medium/High; or Faster/Slower are examples of ordinal levels of
measurement.
The ordinal type allows for rank order (1st, 2nd, 3rd, etc.) by which data can be sorted, but still does
not allow for relative degree of difference between them.
A researcher wishing to measure consumers' satisfaction
with their microwave ovens might ask them to specify their
feelings as either "very dissatisfied," "somewhat
dissatisfied," "somewhat satisfied," or "very satisfied." The
items in this scale are ordered, ranging from least to most satisfied.
This means the scores must be rank-ordered from highest to lowest (or vice versa) first, before you
can use any ordinal measures. Like runners in a race, we can rank scores--and the categories
themselves--from first to last, most to least, or highest to lowest.
In rank-ordered cases, we can literally rank order the finishers in a race or the students by their
grade point average (first in class, second in class, and so on down to last in class). Notice that the
intervals between cases probably are not the same (or equal).
Strongly Agree Agree Disagree or Strongly Disagree with that statement.
The simplest ordinal scale is a ranking. An ordinal scale only lets you interpret gross order and not
the relative positional distances.
When a market researcher asks you to rank 5 types of beverages from most flavourful to least
flavourful, he/she is asking you to create an ordinal scale of preference.
There is no objective distance between any two points on your subjective scale. For you the top
beverage may be far superior to the second prefered beverage but, to another respondant with the
same top and second beverage, the distance may be subjectively small.
The ordinal scale has at least one major advantage over the nominal scale. The ordinal scale contains
all of the information captured in the nominal scale but it also ranks data from lowest to highest.
Rather than simply categorize data by placing an object either into or not into a category, ordinal data
give you some idea of where data lie in relation to each other.
Unlike nominal scales, ordinal scales allow comparisons of the degree to which two subjects possess
the dependent variable. For example, our satisfaction ordering makes it meaningful to assert that one
person is more satisfied than another with their microwave ovens. Such an assertion reflects the first
person's use of a verbal label that comes later in the list than the label chosen by the second person.
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On the other hand, ordinal scales fail to capture important information that will be present in the
other scales we examine. In particular, the difference between two levels of an ordinal scale cannot be
assumed to be the same as the difference between two other levels.
EXAMPLES
For example, if a researcher asked farmers to rank 5 brands of Detergent in order of preference.
For instance, an employer might rank order applicants for a job on their professional appearance.
Traditionally, we give a rank of 1 to the subject who is highest, 2 to the next highest, and so on. It
is important to note that ranks do not tell us by how much subjects differ. To measure the amount
of difference among subjects, we use the next levels of measurement.
For example, social class is an ordinal variable because we can say that a person in the category
"upper class" has a higher class position than a person in a middle class category, which again is higher than "lower class."
RANK: 1st place, 2nd place, ... last place
LEVEL OF AGREEMENT: No, Maybe, Yes
POLITICAL ORIENTATION: Left, Center, Right
the order of finish (e.g., class rank or a horse race)
collapses of numeric data into categories with unequal widths or intervals (e.g., collapsing
years of education into degree level).
Ordinal time of day - indicates direction or order of occurrence; spacing between is uneven
STATISTICAL OPERATIONS Median and mode
Rank order correlation
Non-parametric analysis of variance.
Modeling techniques can also be used with ordinal data.
Boolean operations possible
Central tendency: The median, i.e. middle-ranked, item is allowed as the measure of central
tendency; however, the mean (or average) as the measure of central tendency is not allowed.
The mode is allowed.
3. INTERVAL SCALE
The interval scale indicates the distance one object is from another.
Unlike the nominal and ordinal scales, you can make relative distance measurements among objects
using the interval scale.
In interval measurement, the distance between the attributes, or categories, does have meaning.
Interval scales are numerical scales in which intervals have the same interpretation throughout.
The interval type allows for the degree of difference between items, but not the ratio between them.
Interval scales provide information about order, and also possess equal intervals. The standard survey
rating scale is an interval scale.
It is an interval scale because it is assumed to have equidistant points between each of the scale
elements. This means that we can interpret differences in the distance along the scale. We contrast this
to an ordinal scale where we can only talk about differences in order, not differences in the degree of
order.
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It is only with an interval scaled data that researchers can justify the use of the arithmetic mean as the
measure of average. The interval or cardinal scale has equal units of measurement, thus making it
possible to interpret not only the order of scale scores but also the distance between them. However, it
must be recognized that the zero point on an interval scale is arbitrary and is not a true zero.
It is possible to add or subtract a constant to all of the scale values without affecting the form of the
scale but one cannot multiply or divide the values.
Interval scales are not perfect, however. In particular, they do not have a true zero point even if one of
the scaled values happens to carry the name "zero." The Fahrenheit scale illustrates the issue. Zero
degrees Fahrenheit does not represent the complete absence of temperature (the absence of any
molecular kinetic energy).
EXAMPLES
For example, when we measure temperature (in Fahrenheit), the distance from 30-40 is same as
distance from 70-80. The interval between values is interpretable. Because of this, it makes sense
to compute an average of an interval variable, where it doesn't make sense to do so for ordinal
scales. But note that in interval measurement ratios don't make any sense - 80 degrees is not twice
as hot as 40 degrees (although the attribute value is twice as large). Scores obtained using objective tests such as multiple-choice tests of achievement.
POLITICAL ORIENTATION: Score on standardized scale of political orientation
Interval time of day - equal intervals; analog (12-hr.) clock, difference between 1 and 2 pm is same as
difference between 11 and 12 am Interval scales may be either numeric or semantic.
STATISTICCAL OPERATIONS
Central tendency and statistical dispersion: The mode, median, and arithmetic mean are
allowed to measure central tendency of interval variables, while measures of statistical
dispersion include range and standard deviation.
Mean and standard deviation
Correlation r
Regression
Analysis of variance
Factor analysis
Plus a whole range of advanced multivariate and modeling techniques
4. RATIO SCALE
The scale that contains the richest information about an object is ratio scaling. In addition to all the
properties of nominal, ordinal, and interval variables, ratio variables also have a fixed/non-arbitrary
zero point (a point where none of the quality being measured exists).
Ratio levels have an absolute zero that is meaningful (i.e. no numbers exist below zero). That is, you
can construct a meaningful ratio, or fraction, with a ratio variable.
Using a ratio scale permits comparisons such as being twice as high, or one-half as much.
The ratio scale of measurement is the most informative scale. It is an interval scale with the additional
property that its zero position indicates the absence of the quantity being measured. You can think of
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a ratio scale as the three earlier scales rolled up in one. Like a nominal scale, it provides a name or
category for each object (the numbers serve as labels). Like an ordinal scale, the objects are ordered
(in terms of the ordering of the numbers). Like an interval scale, the same difference at two places on
the scale has the same meaning. And in addition, the same ratio at two places on the scale also carries
the same meaning.
The highest level of measurement is a ratio scale. This has the properties of an interval scale together
with a fixed origin or zero point. Examples of variables which are ratio scaled include weights,
lengths and times. Ratio scales permit the researcher to compare both differences in scores and the
relative magnitude of scores. For instance the difference between 5 and 10 minutes is the same as that
between 10 and 15 minutes, and 10 minutes is twice as long as 5 minutes.
EXAMPLES
For example, the number of clients in past six months. Why? Because you can have zero clients and
because it is meaningful to say that "...we had twice as many clients in the past six months as we did
in the previous six months."
The Fahrenheit scale for temperature has an arbitrary zero point and is therefore not a ratio scale.
However, zero on the Kelvin scale is absolute zero. This makes the Kelvin scale a ratio scale. For
example, if one temperature is twice as high as another as measured on the Kelvin scale, then it has
twice the kinetic energy of the other temperature.
Another example of a ratio scale is the amount of money you have in your pocket right now (25
cents, 55 cents, etc.). Money is measured on a ratio scale because, in addition to having the properties
of an interval scale, it has a true zero point: if you have zero money, this implies the absence of
money.
Examples include mass, length, duration, plane angle, energy and electric charge.
RULER: inches or centimeters
INCOME: money earned last year
GPA: grade point average
YEARS of work experience
NUMBER of children
STATISTICAL OPERATIONS Central tendency and statistical dispersion: The geometric mean and the harmonic mean are allowed
to measure the central tendency, in addition to the mode, median, and arithmetic mean. The range and
the coefficient of variation are allowed to measure statistical dispersion. All statistical measures are
allowed because all necessary mathematical operations are defined for the ratio scale.
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6. KINDS OF SCIENTIFIC RESEARCH
6.1 QUALITATIVE AND QUANTITATIVE QUANTITATIVE RESEARCH
Quantitative research, involving the counting and measuring of communication events, is often
equated with scientific empiricism. The approach yields a body of numerical data, which the
researchers analyze statistically. Any of the materials including measurement techniques, sampling
methods, and statistical tests are geared toward quantitative research. Importantly, quantitative
analysis may be conducted in naturalistic or laboratory research settings and may be applied to vast
array of communication phenomena including mass media, organizational communication, &
interpersonal interaction. The approach is distinguished, only by its use of numerical data as a means
of understanding the nature of human communication. Quantitative research is concerned with how
often a variable is present and generally uses numbers to communicate this amount. In quantitative
research, reality is objective; which exist apart from researchers and can be seen by all. It believes all
human beings are basically similar and looks for general categories to summarize their behavior or
feelings.
The quantitative in quantitative research contains the word quantitysomething that can be counted. So quantitative research includes any research methods that produce hard numbers which
can be turned into statistics. Census is an example of large-scale quantitative research in action.
Quantitative research methods, including surveys and controlled experiments.
Market researchers conduct surveys to find out demographic information about their customers.
Quantitative research aim to measure the quantity or amount and compares it with past records and
tries to project for future period. In social sciences, quantitative research refers to the systematic empirical investigation of quantitative properties and phenomena and their relationships. The objective of qualitative research is to develop and employ mathematical models, theories or
hypothesis pertaining to phenomena. The process of measurement is central to quantitative research
because it provides fundamental connection between empirical observation and mathematical
expression of quantitative relationships. Statistics is the most widely used branch of mathematics in
quantitative research. Statistical methods are used extensively with in fields such as economics and
commerce. Quantitative research involving the use of structured questions, where the response
options have been Pre-determined and large number of respondents is involved.
There are a number of core characteristics to quantitative dissertations:
They typically attempt to build on and/or test theories, whether adopting an original approach or
an approach based on some kind of replication or extension.
They answer quantitative research questions and/or research (or null) hypotheses.
They are mainly underpinned by positivist or post-positivist research paradigms.
They draw on one of four broad quantitative research
designs (i.e., descriptive, experimental, quasi-experimental or relationship-based research
designs).
They try to use probability sampling techniques, with the goal of making generalisations from
the sample being studied to a wider population, although often end up applying non-probability
sampling techniques.
They use research methods that generate quantitative data (e.g., data sets, laboratory-based
methods, questionnaires/surveys, structured interviews, structured observation, etc.).
They draw heavily on statistical analysis techniques to examine the data collected,
whether descriptive or inferential in nature.
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They assess the quality of their findings in terms of their reliability, internal and external
validity, and construct validity.
They report their findings using statements, data, tables and graphs that address each research
question and/or hypothesis.
They make conclusions in line with the findings, research questions and/or hypotheses,
and theories discussed in order to test and/or expand on existing theories, or providing insight
for future theories.
QUALITATIVE RESEARCH
Although statistical analysis is prominent in communication research, much contemporary inquiry is
qualitative. Often equated with humanistic studies, qualitative research rejects numerical measures in
favor of narrative data, meaning that qualitative data" appear in words rather than in numbers.
Examples of qualitative data may include transcripts of naturalistic conversation, communication
documents such as public speeches and media artifacts like printed editorials and videotapes of
television of programs. Qualitative analysis involves the critical analysis and synthesis of narrative
information to derive verbal rather than statistical conclusions about the contents and functions of
human talk.
Chadwick, Bahr, &Albrecht, (1984) defined it as Qualitative research refers to several methods of data collection which include focus groups, field observations, in-depth interviews, and case studies.
Although there are substantial differences among these techniques, all involve what some writers refer
to as 'getting close to the data
While quantitative research can tell you when, where, and how often things happen, qualitative
research looks at the why and how. Qualitative research produces observations, notes, and descriptions of behavior and motivation. Research methods in this category include:
Interviews: either a series of structured questions, or allowing a subject to narrate their experience
Focus groups: soliciting observations from groups of people who share a similar attribute (for example, a group of women over 40) to give opinions on a topic
Reviews: Combing through scholarly literature or other published writings to determine attitudes towards a subject
Observation: researchers watch people on their daily routine and make notes or recordings documenting their behavior
Qualitative research presents non-qualitative type of analysis. Qualitative research is collecting,
analyzing and interpreting data by observing what people do and say. Qualitative research research
refers to the meanings, definitions, characteristics, symbols, metaphors, and description of things.
Qualitative research is much more subjective and uses very different methods of collecting
information,mainly individual, indepth interviews and focus groups. The nature of this type of
research is exploratory and open ended. Small number of people are interviewed in depth and or a
relatively small number of focus groups are conducted. Qualitative research can be further classified
in the following type:
I. Phenomenology:-a form of research in which the researcher attempts to understand how one or more individuals experience a phenomenon. Eg:-we might interview 20 victims of bhopal
tragedy.
II. Ethnography:- this type of research focuses on describing the culture of a group of people. A culture is the shared attributes, values, norms, practices, language, and material things of a
group of people. Eg:-the researcher might decide to go and live with the tribal in Andaman
island and study the culture and the educational practices. III. Case study:-is a form of qualitative research that is focused on providing a detailed account of
one or more cases
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IV. Grounded theory:- it is an inductive type of research, based or grounded in the observations of data from which it was developed; it uses a variety of data sources,
including quantitative data, review of records, interviews, observation and surveys V.
Historical research:-it allows one to discuss past and present events in the context of the
present condition, and allows one to reflect and provide possible answers to current
issues and problems.
There are a number of broad characteristics to qualitative dissertations:
They follow an emergent design, meaning that the research process, and sometimes even
the qualitative research questions that you tackle, often evolve during the dissertation process.
They use theory in a variety of ways - sometimes drawing on theory to help the research
process; on other occasions, using theory to develop new theoretical insights; sometimes both -
but the goal is infrequently to test a particular theory from the outset.
They can be underpinned by one of a number of research
paradigms (e.g., interpretivism, constructivism, critical theory, amongst many other research
paradigms).
They follow research designs that heavily influence the choices you make throughout the
research process, as well as the analysis and discussion of 'findings' (i.e., such research designs
differ considerably depending on the route that is being followed, whether
an autoethnography, case study research, ethnography, grounded theory, narrative
research,phenomenological research, etc.).
They try to use theoretical sampling - a group of non-probability sampling techniques - with
the goal of studying cases (i.e., people or organisations) that are most appropriate to answering
their research questions.
They study people in-the-field (i.e., in natural settings), often using multiple research methods,
each of which generate qualitative data (e.g., unstructured interviews, focus
groups,participant observation, etc.).
They interpret the qualitative data through the eyes and biases of the researcher, going back-
and-forth through the data (i.e., an inductive process) to identify themes or abstractions that
build a holistic/gestalt picture of what is being studied.
They assess the quality of their findings in terms of
their dependability, confirmability, conformability and transferability.
They present (and discuss) their findings through personal accounts, case studies, narratives,
and other means that identify themes or abstracts, processes, observations andcontradictions,
which help to address their research questions.
They discuss the theoretical insights arising from the findings in light of the research questions,
from which tentative conclusions are made.
COMBINING RESEARCH METHODS
Naturally, you can use a mix of research methods to help gather comprehensive evidence or give a
more complete picture of what it is youre studying.
QUALITATIVE VERSUS QUANTITATIVE RESEARCH
Criteria Qualitative Research Quantitative Research
Purpose To understand & interpret
social interactions.
To test hypotheses, look at cause &
effect, & make predictions.
Group Studied Smaller & not randomly selected. Larger & randomly selected.
Variables Study of the whole, not variables. Specific variables studied
Type of Data Collected Words, images, or objects. Numbers and statistics.
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Form of Data Collected Qualitative data such as open- ended
responses, interviews, participant
observations, field notes, &
reflections.
Quantitative data based on
precise measurements using
structured & validated data-
collection instruments.
Type of Data Analysis Identify patterns, features, themes. Identify statistical relationships.
Objectivity and Subjectivity Subjectivity is expected. Objectivity is critical.
Role of Researcher Researcher & their biases may be
known to participants in the study, &
participant characteristics may be
known to the researcher.
Researcher & their biases are not
known to participants in the study,
& participant characteristics are
deliberately hidden from the
researcher (double blind studies).
Results Particular or specialized findings
that is less generalizable.
Generalizable findings that can be
applied to other populations.
Scientific Method Exploratory or bottomup: the researcher generates a new
hypothesis and theory from the data
collected.
Confirmatory or top-down: the
researcher tests the hypothesis and
theory with the data.
View of Human Behavior Dynamic, situational, social, &
personal.
Regular & predictable.
Most Common
Research Objectives
Explore, discover, & construct. Describe, explain, & predict.
Focus Wide-angle lens; examines the
breadth & depth of phenomena.
Narrow-angle lens; tests a
specific hypotheses.
Nature of Observation Study behavior in a natural
environment.
Study behavior under
controlled conditions;
isolate causal effects.
Nature of Reality Multiple realities; subjective. Single reality; objective.
Final Report
Narrative report with contextual
description & direct quotations
from research participants.
Statistical report with
correlations, comparisons of
means, & statistical
significance of findings.
Setting for data gathering
Natural environment of research
Participants
Office, agency, or via mail or
Internet
6.2 BASIC AND APPLIED
Basic research looks at causes, effects, and the nature of things Applied research tries to find answers and solutions to specific problems.
BASIC RESEARCH
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Basic research is conducted to expand knowledge and
understanding by either developing or testing theory. Its
focus is knowledge for knowledge's sake. It is typically
what we think of when we think of scientific research.
Basic research is used to explore the fundamental bases
of behavior, without regard to how those bases are
manifested in the real world. Basic research aims to
explain, predict, and describe fundamental bases of
behavior.
It exemplifies by the experiment paradigm explores
theoretical relationships with little regard for the practical
implications of the research findings. Given this focus,
basic scientific research is conducted in the laboratory
where minimum attention is paid to generalizing results
to real life settings.
Basic research is generally not related to a specific
problem and its findings cannot be immediately applied.
Pure research, basic research, or fundamental
research is research carried out to increase
understanding of fundamental principles. It is not intended to yield immediate practical benefits; pure
research can be thought of as arising out of curiosity.
The research which is done for knowledge enhancement, the research which does not have immediate
commercial potential. The research which is done for human welfare, animal welfare and plant
kingdom welfare. Basic research lay down the foundation for the applied research.
APPLIED RESEARCH
Applied research is a form of systematic inquiry involving the practical application of science. It
accesses and uses some part of the research communities' (the academia's) accumulated theories,
knowledge, methods, and techniques, for a specific, often state-, business-, or client-driven purpose.
Applied research is compared to pure research (basic research) in discussion about research ideals,
methodologies, programs, and projects.
Applied research deals with solving practical problems and generally
employs empirical methodologies.
Applied research directly addresses the problem at hand. Applied research is launched by the firm,
agency, or individual facing a specific problem.
The primary purpose for applied research (as opposed to basic research) is discovering, interpreting,
and the development of methods and systems for the advancement of human knowledge on a wide
variety of scientific matters of our world and the universe.
Applied research is designed to solve practical problem of the modern world, rather than to acquire
knowledge for knowledges sake. The goal of applied research is to improve the human condition. It
focus on analysis and solving social and real life problems. This research is generally conducted on
large scale basis, it is expensive. As such, it often conducted with the support of some financing
agency like government , public corporation , world bank, UNICEF, UGC,Etc,.
Applied research is research conducted to further the development of effective policies and programs.
It collects and analyzes empirical data to provide knowledge that can be used to develop new policies
and programs or evaluate existing ones.
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It is concerned with the practical and theoretical sides of communicative life. It explores theoretical
relationship of the purpose of understanding and solving problems related to everyday communicative
actions and interactions. Survey research including political poles and analysis of peoples media preferences often has an applied orientation. Public speaking studies that generate prescriptive rules of
effective speech may be applies as well. Because of its pragmatic posture, applies research is usually
taken place in field settings.
Types of applied research Needs assessment.
Program evaluation and outcome assessment.
Client, patient, employee, and product satisfaction research.
Cost-benefit analysis.
Social impact assessment.
Action research.
Operations research and organizational analysis.
Market research and utilization studies.
Public opinion and political polling.
Quality assurance research.
6.3 HISTORICAL RESEARCH DEFINITION Historical research is the process of systematically examining past events to give an account of what
has happened in the past.
It is a flowing, dynamic account of past events which involves an interpretation of the these events in
an attempt to recapture the nuances, personalities, and ideas that influenced these events. It is not a
mere accumulation of facts and dates or even a description of past events.
Historical research describes past events, problems, issues and facts. Data are gathered from written
or oral descriptions of past events, artifacts, etc. It is different from a report in that it involves
interpretation of events and its influence on the present.
Historical research has been defined as the systematic and objective location, evaluation and synthesis
of evidence in order to establish facts and draw conclusions about past events (Borg (1963).
The values of historical research have been categorized by Hill and Kerber as follows:
it enables solutions to contemporary problems to be sought in the past; it throws light on present and future trends; it stresses the relative importance and the effects of the various interactions that are to be found
within all cultures;
it allows for the revaluation of data in relation to selected hypotheses, theories and generalizations that are presently held about the past.
Examples of Historical Research
A study of the factors leading to the historical development and growth of cooperative learning
A study of the effects of the historical decisions of the United States Supreme Court on American
prisons
A study of the evolution of print journalism in the United States through a study of collections of
newspapers
A study of the historical trends in public laws by looking recorded at a local courthouse
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Ethnographic research develops in-depth analytical descriptions of current systems, processes.
OBJECTIVES OF HISTORICAL RESEARCH One of the goals of historical research is to communicate an understanding of past events.
Historical research is conducted to
Uncover the unknown,
Answer questions,
Identify the relationship that the past has to the present,
Record and evaluate accomplishments of individuals, agencies, or institutions,
Aid in understan