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Research methods
Experimental
Analytical Survey Historical
Experimental research Designed to access the effects of particular
variable on phenomenon by keeping the other variable constant or controlled.
Determines whether and in what manner variables are related to each other.
Variable
Dependent Independent
The factors which is influenced by other factors is dependent variable.
And other factors, which influence it are known as independent variable.
Daily wage workers’ salary-
Hours Rupees per hour Wages
9 200 1800
9 250 2250
Relationship between independent variable and dependent variable is perceived and stated in the form of casual hypothesis.
Rupees per hour Wages
Rupees per hour Wages
Conditions- Identical group Should be amendable for experimentation Dependent & independent variable should be
identifiable.
Types of experimental design, After only design One group before-after design
After only design - The effects on dependent variable is assessed by measuring it in both experimental and control group.
Movie budget, Dependent variable – Movie budget Independent variable- ticket value Experimental group – Multiplex & Single theater
Ticket value
Persons
Movie budget Total
Multiplex 500 10 5000
Single theater
100 10 1000
Difference : Rupees 4000 The difference is attributed to price of
ticket.
2. One group before-after design Researcher wants to evaluate the
effectiveness of a film in changing attitude towards drinking and driving.
Difference- Y2-Y1
Before After
Target group Y1 Y2
It applies to quantitative data It may consist of a system of mathematical
model or statistical techniques applicable to numerical data.
Aims at testing hypothesis and, specifying and interpreting relationships.
Used in business and other fields in which quantitative numerical data are generated.
Analytical study/ Statistical study
Data published by RBI, NABARD,UNCTAD,WB,IMF on economic development used by many researchers to find out relationship among PCI, GDP, Employment, FDI, Industrial growth & etc.
Example
Study of past records To reconstruct the origin and development
of an institution or movement or system and discovering trends in the past.
Draw explanation and generalization from the past trends in order to understand the present and to anticipate the future.
Historical research
It’s a fact finding study Collection of data directly It requires expert and imaginative planning,
careful analysis and rational interpretation of the findings.
Surveys
Selection of problem Research design Operationalisation of concept Sampling Construction of tools Field work and collection of data Processing of data Analysis of data Reporting
Steps
Social survey – Social environmental of people People’s opinion and attitudeEconomic survey – Economic condition of people
Example