NUR 4000 Evidence-Based
Nursing Practice Exam |
2025/2026 Verified A+
Correct Answers
Research Methodology (Questions 1-20)
1. Question: A nurse researcher is designing a study to explore the lived
experiences of patients with chronic pain. Which qualitative method best
aligns with this aim? Options:
o A. Phenomenology
o B. Randomized controlled trial
o C. Survey questionnaire
o D. Case-control study Answer: A. Phenomenology Explanation:
Phenomenology captures subjective experiences without
preconceptions, ideal for understanding pain's essence; Creswell &
Poth (2023) emphasize bracketing in interviews to ensure rigorous
data analysis.
2. Question: In a quantitative study examining the effect of a nursing
intervention on patient falls, the researcher selects a pre-test/post-test design.
What is the main limitation? Options:
o A. Lack of a control group
o B. Small sample size
o C. Qualitative bias
o D. Ethical concerns Answer: A. Lack of a control group
Explanation: Without controls, maturation or history threats
confound results; Polit & Beck (2024) recommend quasi-experimental
designs with comparisons for causal inference in clinical trials.
3. Question: A nurse is critiquing a study using convenience sampling for a
survey on nurse burnout. What is the primary threat to validity? Options:
o A. Sampling bias limiting generalizability
o B. High response rate
o C. Longitudinal data
, o D. Mixed methods Answer: A. Sampling bias limiting
generalizability Explanation: Convenience sampling selects
accessible participants, skewing representation; Grove & Gray (2023)
stress random sampling for external validity in population-based
research.
4. Question: A researcher aims to test a new wound care protocol's efficacy.
Which design allows for causality inference? Options:
o A. Experimental design
o B. Correlational study
o C. Descriptive survey
o D. Ethnographic observation Answer: A. Experimental design
Explanation: Randomization and control in experiments establish
cause-effect; JBI 2025 evidence hierarchy ranks RCTs highest for
intervention studies like wound care.
5. Question: In a mixed-methods study on nurse retention, the researcher
integrates qualitative interviews with quantitative surveys. What is the key
benefit? Options:
o A. Triangulation for robust findings
o B. Simplified data collection
o C. Reduced sample size
o D. Faster analysis Answer: A. Triangulation for robust findings
Explanation: Mixed methods converge data for validity; Creswell
(2023) highlights how qualitative explains quantitative trends,
enhancing transferability in nursing workforce research.
6. Question: A study reports a p-value of 0.03 for the association between shift
work and errors. What does this indicate? Options:
o A. Statistical significance at α = 0.05
o B. Clinical significance
o C. No association
o D. Type I error Answer: A. Statistical significance at α = 0.05
Explanation: p < 0.05 rejects the null hypothesis, indicating unlikely
chance findings; Polit & Beck (2024) caution interpreting with effect
size for practical relevance in error studies.
7. Question: A nurse researcher seeks to understand cultural influences on
pain management. Which sampling method is appropriate? Options:
o A. Purposive sampling
o B. Simple random
o C. Stratified
, o D. Cluster Answer: A. Purposive sampling Explanation: Purposive
selects information-rich cases for depth; Patton (2024) recommends it
for qualitative cultural studies to capture diverse perspectives.
8. Question: In a longitudinal study tracking hypertension outcomes, the
researcher faces high dropout rates. This threatens? Options:
o A. Internal validity due to attrition bias
o B. External validity
o C. Reliability
o D. Construct validity Answer: A. Internal validity due to attrition bias
Explanation: Attrition skews results if dropouts differ systematically;
Grove & Gray (2023) advocate intent-to-treat analysis to mitigate in
cohort designs.
9. Question: A study uses thematic analysis for interview data on end-of-life
care. What is the goal? Options:
o A. Identify patterns and meanings
o B. Quantify frequencies
o C. Test hypotheses
o D. Generalize population Answer: A. Identify patterns and meanings
Explanation: Braun & Clarke (2024) thematic analysis codes for
recurrent ideas; qualitative rigor ensures credibility in palliative care
research.
10.Question: A researcher calculates odds ratio (OR) in a case-control study on
smoking and lung cancer. OR >1 indicates? Options:
o A. Increased risk with exposure
o B. No association
o C. Protective effect
o D. Confounding Answer: A. Increased risk with exposure
Explanation: OR approximates relative risk; Rothman (2024) notes
OR=3.0 suggests 3x higher odds, guiding public health smoking
cessation policies.
11.Question: Ethical consideration in research with vulnerable populations
requires? Options:
o A. Informed consent with assent for minors
o B. Waiver of consent
o C. Deception
o D. Minimal risk only Answer: A. Informed consent with assent for
minors Explanation: Belmont Report (2023 update) mandates assent
alongside parental consent; protects autonomy in pediatric oncology
studies.
Nursing Practice Exam |
2025/2026 Verified A+
Correct Answers
Research Methodology (Questions 1-20)
1. Question: A nurse researcher is designing a study to explore the lived
experiences of patients with chronic pain. Which qualitative method best
aligns with this aim? Options:
o A. Phenomenology
o B. Randomized controlled trial
o C. Survey questionnaire
o D. Case-control study Answer: A. Phenomenology Explanation:
Phenomenology captures subjective experiences without
preconceptions, ideal for understanding pain's essence; Creswell &
Poth (2023) emphasize bracketing in interviews to ensure rigorous
data analysis.
2. Question: In a quantitative study examining the effect of a nursing
intervention on patient falls, the researcher selects a pre-test/post-test design.
What is the main limitation? Options:
o A. Lack of a control group
o B. Small sample size
o C. Qualitative bias
o D. Ethical concerns Answer: A. Lack of a control group
Explanation: Without controls, maturation or history threats
confound results; Polit & Beck (2024) recommend quasi-experimental
designs with comparisons for causal inference in clinical trials.
3. Question: A nurse is critiquing a study using convenience sampling for a
survey on nurse burnout. What is the primary threat to validity? Options:
o A. Sampling bias limiting generalizability
o B. High response rate
o C. Longitudinal data
, o D. Mixed methods Answer: A. Sampling bias limiting
generalizability Explanation: Convenience sampling selects
accessible participants, skewing representation; Grove & Gray (2023)
stress random sampling for external validity in population-based
research.
4. Question: A researcher aims to test a new wound care protocol's efficacy.
Which design allows for causality inference? Options:
o A. Experimental design
o B. Correlational study
o C. Descriptive survey
o D. Ethnographic observation Answer: A. Experimental design
Explanation: Randomization and control in experiments establish
cause-effect; JBI 2025 evidence hierarchy ranks RCTs highest for
intervention studies like wound care.
5. Question: In a mixed-methods study on nurse retention, the researcher
integrates qualitative interviews with quantitative surveys. What is the key
benefit? Options:
o A. Triangulation for robust findings
o B. Simplified data collection
o C. Reduced sample size
o D. Faster analysis Answer: A. Triangulation for robust findings
Explanation: Mixed methods converge data for validity; Creswell
(2023) highlights how qualitative explains quantitative trends,
enhancing transferability in nursing workforce research.
6. Question: A study reports a p-value of 0.03 for the association between shift
work and errors. What does this indicate? Options:
o A. Statistical significance at α = 0.05
o B. Clinical significance
o C. No association
o D. Type I error Answer: A. Statistical significance at α = 0.05
Explanation: p < 0.05 rejects the null hypothesis, indicating unlikely
chance findings; Polit & Beck (2024) caution interpreting with effect
size for practical relevance in error studies.
7. Question: A nurse researcher seeks to understand cultural influences on
pain management. Which sampling method is appropriate? Options:
o A. Purposive sampling
o B. Simple random
o C. Stratified
, o D. Cluster Answer: A. Purposive sampling Explanation: Purposive
selects information-rich cases for depth; Patton (2024) recommends it
for qualitative cultural studies to capture diverse perspectives.
8. Question: In a longitudinal study tracking hypertension outcomes, the
researcher faces high dropout rates. This threatens? Options:
o A. Internal validity due to attrition bias
o B. External validity
o C. Reliability
o D. Construct validity Answer: A. Internal validity due to attrition bias
Explanation: Attrition skews results if dropouts differ systematically;
Grove & Gray (2023) advocate intent-to-treat analysis to mitigate in
cohort designs.
9. Question: A study uses thematic analysis for interview data on end-of-life
care. What is the goal? Options:
o A. Identify patterns and meanings
o B. Quantify frequencies
o C. Test hypotheses
o D. Generalize population Answer: A. Identify patterns and meanings
Explanation: Braun & Clarke (2024) thematic analysis codes for
recurrent ideas; qualitative rigor ensures credibility in palliative care
research.
10.Question: A researcher calculates odds ratio (OR) in a case-control study on
smoking and lung cancer. OR >1 indicates? Options:
o A. Increased risk with exposure
o B. No association
o C. Protective effect
o D. Confounding Answer: A. Increased risk with exposure
Explanation: OR approximates relative risk; Rothman (2024) notes
OR=3.0 suggests 3x higher odds, guiding public health smoking
cessation policies.
11.Question: Ethical consideration in research with vulnerable populations
requires? Options:
o A. Informed consent with assent for minors
o B. Waiver of consent
o C. Deception
o D. Minimal risk only Answer: A. Informed consent with assent for
minors Explanation: Belmont Report (2023 update) mandates assent
alongside parental consent; protects autonomy in pediatric oncology
studies.
