1. Explain the meaning and significance of a Research design. 2. Explain the meaning of the following in context of Research design.

(a) Extraneous variables;

(b) Confounded relationship;

(c) Research hypothesis;

(d) Experimental and Control groups;

(e) Treatments.

3. Describe some of the important research designs used in experimental hypothesis-testing research study.

4. “Research design in exploratory studies must be flexible but in descriptive studies, it must minimise bias and maximise reliability.” Discuss.

5. Give your understanding of a good research design. Is single research design suitable in all research studies? If not, why?

6. Explain and illustrate the following research designs:

(a) Two group simple randomized design;

(b) Latin square design;

(c) Random replications design;

(d) Simple factorial design;

(e) Informal experimental designs.

7. Write a short note on ‘Experience Survey’ explaining fully its utility in exploratory research studies.

8. What is research design? Discuss the basis of stratification to be employed in sampling public opinion on inflation.​