Verified Answers
Course: NRNP 6645 – Nursing Research & Evidence-Based Practice
Time Allowed: 2 hours
Instructions:
Answer all questions.
For multiple choice questions, circle or clearly indicate the best
answer.
For short answer questions, provide clear, concise responses that
directly address the prompt.
Read each question carefully before answering.
Part I – Multiple Choice
1. Which research design is most appropriate for determining cause-
and-effect relationships in nursing interventions?
A. Descriptive study
B. Correlational study
C. Experimental study
D. Qualitative study
Answer: C. Experimental study
2. Which of the following best defines evidence-based practice in
nursing?
A. Relying on clinical experience alone
B. Implementing treatments based solely on tradition
C. Integrating clinical expertise with the best available research
, evidence and patient values
D. Using patient preferences without scientific support
Answer: C. Integrating clinical expertise with the best available research
evidence and patient values
3. What is the primary function of the Institutional Review Board
(IRB) in research?
A. To secure funding for research projects
B. To ensure ethical treatment and protection of human subjects
C. To publish research findings in academic journals
D. To design and plan research studies
Answer: B. To ensure ethical treatment and protection of human
subjects
4. In quantitative research, which measure is commonly used to
represent the central tendency of a dataset?
A. Standard deviation
B. Variance
C. Mean
D. Range
Answer: C. Mean
5. Which of the following is a potential threat to internal validity in a
research study?
A. Random sampling
B. Selection bias
C. Large sample size
D. High statistical power
Answer: B. Selection bias