NUR 3270: NURSING RESEARCH AND
EVIDENCE-BASED PRACTICE FINAL
EXAM QUESTIONS WITH VERIFIED
ANSWERS AND DETAILED
EXPLANATIONS
1. Which ethical principle from the Belmont Report is being applied when a researcher
ensures that the risks to participants are minimized and the benefits are maximized?
A. Beneficence
B. Justice
C. Respect for Persons
D. Non-maleficence
Answer: A
Conceptual Explanation: Beneficence involves maximizing potential benefits while
minimizing potential harms to research participants.
2. In the PICO(T) format for evidence-based practice questions, what does the ‘C’ represent?
A. Comparison intervention
B. Clinical outcomes
C. Confounding variables
,D. Context of care
Answer: A
Conceptual Explanation: In PICO(T), C stands for Comparison, which is the alternative to
the intervention being studied.
3. A researcher is studying the effect of a new dressing on wound healing rates. In this study,
the type of dressing is considered which type of variable?
A. Independent variable
B. Dependent variable
C. Extraneous variable
D. Mediating variable
Answer: A
Conceptual Explanation: The independent variable is the intervention or treatment that is
manipulated to observe its effect on the outcome.
4. Which of the following is a key characteristic that distinguishes a ‘true’ experimental design
from a quasi-experimental design?
A. Manipulation of the independent variable
B. Random assignment to groups
C. Measurement of outcomes
D. Use of a control group
, Answer: B
Conceptual Explanation: True experiments require randomization, manipulation, and
control. Quasi-experiments lack random assignment.
5. What is the primary purpose of a ‘Power Analysis’ in quantitative research?
A. To determine the statistical significance of the results
B. To control for extraneous variables
C. To measure the strength of a relationship between variables
D. To estimate the required sample size to detect an effect
Answer: D
Conceptual Explanation: Power analysis is used a priori to determine the minimum
sample size needed to avoid a Type II error.
6. Which qualitative research tradition focuses on the ‘lived experience’ of individuals
regarding a specific phenomenon?
A. Historical Research
B. Grounded Theory
C. Ethnography
D. Phenomenology
Answer: D
EVIDENCE-BASED PRACTICE FINAL
EXAM QUESTIONS WITH VERIFIED
ANSWERS AND DETAILED
EXPLANATIONS
1. Which ethical principle from the Belmont Report is being applied when a researcher
ensures that the risks to participants are minimized and the benefits are maximized?
A. Beneficence
B. Justice
C. Respect for Persons
D. Non-maleficence
Answer: A
Conceptual Explanation: Beneficence involves maximizing potential benefits while
minimizing potential harms to research participants.
2. In the PICO(T) format for evidence-based practice questions, what does the ‘C’ represent?
A. Comparison intervention
B. Clinical outcomes
C. Confounding variables
,D. Context of care
Answer: A
Conceptual Explanation: In PICO(T), C stands for Comparison, which is the alternative to
the intervention being studied.
3. A researcher is studying the effect of a new dressing on wound healing rates. In this study,
the type of dressing is considered which type of variable?
A. Independent variable
B. Dependent variable
C. Extraneous variable
D. Mediating variable
Answer: A
Conceptual Explanation: The independent variable is the intervention or treatment that is
manipulated to observe its effect on the outcome.
4. Which of the following is a key characteristic that distinguishes a ‘true’ experimental design
from a quasi-experimental design?
A. Manipulation of the independent variable
B. Random assignment to groups
C. Measurement of outcomes
D. Use of a control group
, Answer: B
Conceptual Explanation: True experiments require randomization, manipulation, and
control. Quasi-experiments lack random assignment.
5. What is the primary purpose of a ‘Power Analysis’ in quantitative research?
A. To determine the statistical significance of the results
B. To control for extraneous variables
C. To measure the strength of a relationship between variables
D. To estimate the required sample size to detect an effect
Answer: D
Conceptual Explanation: Power analysis is used a priori to determine the minimum
sample size needed to avoid a Type II error.
6. Which qualitative research tradition focuses on the ‘lived experience’ of individuals
regarding a specific phenomenon?
A. Historical Research
B. Grounded Theory
C. Ethnography
D. Phenomenology
Answer: D
