Page 1 of 108
NR 449 LATEST EXAM QUESTIONS AND CORRECT VERIFIED
SOLUTIONS LATEST UPDATE THIS YEAR
NR 449 LATEST EXAM
Exam Coverage
Evidence-based practice principles and the integration of research evidence, clinical
expertise, and patient preferences
Nursing research processes, research problems, purposes, questions, variables, and
hypotheses
PICOT development and effective clinical literature-search strategies
Sources of evidence, levels of evidence, scholarly literature, and evidence hierarchies
Quantitative, qualitative, mixed-methods, descriptive, correlational, experimental, and
quasi-experimental research
Sampling methods, data-collection procedures, measurement, reliability, validity, and
research bias
Quantitative data analysis, descriptive statistics, inferential statistics, probability, and
interpretation of findings
Qualitative data analysis, credibility, transferability, dependability, confirmability, and
thematic interpretation
Research ethics, informed consent, vulnerable populations, IRB oversight, privacy,
confidentiality, and research misconduct
Critical appraisal, translation of evidence, clinical recommendations, implementation,
dissemination, and evaluation
1. Which statement best describes evidence-based practice as it applies to professional
nursing decision-making?
A. Following hospital policies regardless of whether newer evidence becomes available
B. Integrating best available evidence with clinical expertise and patient preferences
C. Using research findings exclusively without considering individual patient circumstances
D. Relying primarily on personal experience when selecting nursing interventions
Answer: B
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Rationale: Evidence-based practice integrates the best available evidence with clinical expertise
and the patient's values, preferences, and circumstances.
2. A nurse wants to determine whether hourly rounding reduces patient falls on an inpatient
unit. Which approach best begins this evidence-based inquiry?
A. Immediately change the unit's rounding policy
B. Ask several coworkers whether they believe rounding is effective
C. Develop a focused clinical question that can be systematically investigated
D. Search only for articles supporting the nurse's preferred intervention
Answer: C
Rationale: A focused clinical question provides direction for searching and evaluating evidence
before practice changes are implemented.
3. Which component of a PICOT question identifies the specific population or patient group
being studied?
A. Population
B. Intervention
C. Comparison
D. Outcome
Answer: A
Rationale: The P in PICOT represents the patient population, problem, or population of interest.
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4. A nurse compares chlorhexidine bathing with standard bathing for preventing central-line
infections. Which PICOT component represents chlorhexidine bathing?
A. Population
B. Outcome
C. Time
D. Intervention
Answer: D
Rationale: The intervention is the treatment, exposure, or practice change being evaluated.
5. Why should nurses use focused search terms when conducting a literature search for
evidence-based practice?
A. Focused terms eliminate the need to evaluate research quality
B. Focused terms guarantee that every retrieved article supports the hypothesis
C. Focused terms improve the likelihood of retrieving relevant evidence efficiently
D. Focused terms restrict the search exclusively to quantitative studies
Answer: C
Rationale: Focused search terms improve efficiency and help identify literature directly related
to the clinical question.
6. Which research approach primarily examines numerical measurements and uses statistical
analysis to answer research questions?
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A. Quantitative research
B. Phenomenological research
C. Ethnographic research
D. Grounded theory research
Answer: A
Rationale: Quantitative research uses numerical data and statistical procedures to describe
relationships, differences, or effects.
7. A researcher interviews patients about how they experience living with chronic pain. Which
methodology is most appropriate for understanding their lived experiences?
A. Experimental research
B. Phenomenological research
C. Correlational research
D. Survey research
Answer: B
Rationale: Phenomenology focuses on understanding the meaning and essence of lived human
experiences.
8. What is the primary purpose of a research problem statement?
A. To provide the statistical results of the completed study
B. To identify the participants who will receive the intervention
NR 449 LATEST EXAM QUESTIONS AND CORRECT VERIFIED
SOLUTIONS LATEST UPDATE THIS YEAR
NR 449 LATEST EXAM
Exam Coverage
Evidence-based practice principles and the integration of research evidence, clinical
expertise, and patient preferences
Nursing research processes, research problems, purposes, questions, variables, and
hypotheses
PICOT development and effective clinical literature-search strategies
Sources of evidence, levels of evidence, scholarly literature, and evidence hierarchies
Quantitative, qualitative, mixed-methods, descriptive, correlational, experimental, and
quasi-experimental research
Sampling methods, data-collection procedures, measurement, reliability, validity, and
research bias
Quantitative data analysis, descriptive statistics, inferential statistics, probability, and
interpretation of findings
Qualitative data analysis, credibility, transferability, dependability, confirmability, and
thematic interpretation
Research ethics, informed consent, vulnerable populations, IRB oversight, privacy,
confidentiality, and research misconduct
Critical appraisal, translation of evidence, clinical recommendations, implementation,
dissemination, and evaluation
1. Which statement best describes evidence-based practice as it applies to professional
nursing decision-making?
A. Following hospital policies regardless of whether newer evidence becomes available
B. Integrating best available evidence with clinical expertise and patient preferences
C. Using research findings exclusively without considering individual patient circumstances
D. Relying primarily on personal experience when selecting nursing interventions
Answer: B
, Page 2 of 108
Rationale: Evidence-based practice integrates the best available evidence with clinical expertise
and the patient's values, preferences, and circumstances.
2. A nurse wants to determine whether hourly rounding reduces patient falls on an inpatient
unit. Which approach best begins this evidence-based inquiry?
A. Immediately change the unit's rounding policy
B. Ask several coworkers whether they believe rounding is effective
C. Develop a focused clinical question that can be systematically investigated
D. Search only for articles supporting the nurse's preferred intervention
Answer: C
Rationale: A focused clinical question provides direction for searching and evaluating evidence
before practice changes are implemented.
3. Which component of a PICOT question identifies the specific population or patient group
being studied?
A. Population
B. Intervention
C. Comparison
D. Outcome
Answer: A
Rationale: The P in PICOT represents the patient population, problem, or population of interest.
, Page 3 of 108
4. A nurse compares chlorhexidine bathing with standard bathing for preventing central-line
infections. Which PICOT component represents chlorhexidine bathing?
A. Population
B. Outcome
C. Time
D. Intervention
Answer: D
Rationale: The intervention is the treatment, exposure, or practice change being evaluated.
5. Why should nurses use focused search terms when conducting a literature search for
evidence-based practice?
A. Focused terms eliminate the need to evaluate research quality
B. Focused terms guarantee that every retrieved article supports the hypothesis
C. Focused terms improve the likelihood of retrieving relevant evidence efficiently
D. Focused terms restrict the search exclusively to quantitative studies
Answer: C
Rationale: Focused search terms improve efficiency and help identify literature directly related
to the clinical question.
6. Which research approach primarily examines numerical measurements and uses statistical
analysis to answer research questions?
, Page 4 of 108
A. Quantitative research
B. Phenomenological research
C. Ethnographic research
D. Grounded theory research
Answer: A
Rationale: Quantitative research uses numerical data and statistical procedures to describe
relationships, differences, or effects.
7. A researcher interviews patients about how they experience living with chronic pain. Which
methodology is most appropriate for understanding their lived experiences?
A. Experimental research
B. Phenomenological research
C. Correlational research
D. Survey research
Answer: B
Rationale: Phenomenology focuses on understanding the meaning and essence of lived human
experiences.
8. What is the primary purpose of a research problem statement?
A. To provide the statistical results of the completed study
B. To identify the participants who will receive the intervention
