Agricultural Extension Education- ICAR JRF/SRF 2024

• Definition of 'Concept' in Social Research:
• In research methodology (Fred N. Kerlinger, Foundations of Behavioral Research), a Concept is formally defined as “an abstraction formed by generalization from particulars” (e.g., mass, weight, achievement, adoption).
• When a concept is deliberately invented or adopted for a specific scientific research purpose and operationalized with measurement rules, it becomes a construct.
• Distractors: A hypothesis is a tentative proposition; a theory is an integrated set of interrelated constructs; facts are empirically verified observations.

Correct option: (2) Concept

• Discrete vs. Continuous Variables:
• Discrete Variable: A variable that can only assume distinct, separate categorical or whole integer values with clear boundaries between values. Gender is a qualitative categorical (discrete/dichotomous) variable taking distinct attributes (Male, Female, Other).
• Continuous Variables: Variables that can take on an infinite number of values within a continuum (can be fractionally divided):
• Income: Measured in currency along a continuous financial scale.
• Age: Continuous chronological time measurement.
• Size of Land Holding: Continuous physical area measurement in hectares/acres.

Correct option: (3) Gender

• Quasi-Experimental Research Design:
• In social science research, a Quasi-Experimental Design aims to establish a cause-and-effect relationship between an independent variable and a dependent variable, but lacks random assignment of participants to experimental and control groups.
• Instead, it utilizes naturally existing groups (such as farmers from two different villages), employing statistical controls or pre-test adjustments (e.g., non-equivalent control group design, interrupted time series).
• Distractors: True experimental designs utilize random assignment; descriptive designs do not manipulate variables.

Correct option: (3) Adesign that lacks random assignment but still assesses cause and effect