1. In healthcare research, which of the following is

NOT a commonly used research design for

conducting studies?

A. Experimental design

B. Observational design

C. Cross-sectional design

D. Descriptive design

Answer: D. Descriptive design

Rationale: Descriptive design is used to describe

characteristics or behaviors of a population, while

experimental, observational, and cross-sectional

designs are used for more in-depth research

studies.

2. When analyzing data in healthcare research,

which statistical test is used to determine the

relationship between two or more variables?

A. T-test

B. Chi-square test

C. ANOVA

D. Pearson correlation

Answer: D. Pearson correlation

Rationale: Pearson correlation is used to measure

the strength and direction of the linear relationship

between two continuous variables.

3. Which of the following is NOT a measure of

central tendency commonly used in healthcare