1. A nursing student is conducting a research study to

investigate the effectiveness of hand hygiene interventions

in reducing healthcare-associated infections. Which

research design is most appropriate for this study?

a) Descriptive

b) Experimental

c) Correlational

d) Qualitative

Answer: b) Experimental

Rationale: An experimental design allows for the

manipulation of variables to determine cause and effect

relationships. In this case, the effectiveness of hand

hygiene interventions can be measured by comparing

infection rates before and after implementation of the

interventions.

2. Which of the following types of research designs is best

suited for exploring the lived experiences of patients with

chronic illnesses?

a) Case study

b) Cross-sectional study

c) Quantitative study

d) Observational study

Answer: a) Case study

Rationale: Case study research design involves an in-depth

examination of a single individual or group over a period of

time, which allows for a comprehensive understanding of

their experiences and perspectives.