Which of the following activities are related to the conduct of an experiment in social research?

1.Control the experimental environment

2.Pilot test, revise and test

3.Empathy with the participants

4.Praising the good qualities of the participant

5.Specify the treatment levels

A1, 2 & 3 only

B2, 3 & 5 only

C3, 4 & 5 only

D1, 2 & 5 only ✓ Correct

Correct answer: (D) 1, 2 & 5 only

Explanation

Conducting an experiment involves controlling the environment, pilot testing, and specifying treatment levels.

Controlling the environment holds extraneous variables constant.

Pilot testing, revising and retesting refine the procedure before the main run.

Specifying treatment levels defines the values of the independent variable.

Empathy and praising the participant's qualities introduce bias, not experimental control.

Extraneous variables held constant protect internal validity.

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