1. A nurse researcher wants to compare the effectiveness of

two interventions for smoking cessation: nicotine patches

and cognitive-behavioral therapy. She randomly assigns

100 smokers to either receive the patches or the therapy for

12 weeks and measures their smoking status at the end of

the intervention. What type of research design is this?

a) Quasi-experimental

b) Experimental*

c) Correlational

d) Descriptive

Rationale: This is an experimental design because it

involves random assignment, manipulation of an

independent variable (intervention type), and measurement

of a dependent variable (smoking status).

2. A nurse educator is interested in evaluating the impact of

a simulation-based learning activity on the clinical

reasoning skills of nursing students. She administers a pretest and a post-test to the same group of students before and

after the simulation. What type of statistical test should she

use to analyze the data?

a) Independent samples t-test

b) Paired samples t-test*

c) Chi-square test

d) ANOVA

Rationale: This is a paired samples t-test because it

compares the mean difference between two related groups

(the same students before and after the simulation).