NU 578 UNITS 1–5 ADVANCED
PRACTICE NURSING COMPREHENSIVE
EXAM QUESTIONS & ANSWERS 100%
GUARANTEE PASS | UNIVERSITY OF
SOUTH ALABAMA
1. In the PICO(T) framework for evidence-based practice, what does the ‘T’ specifically
represent in a clinical query?
A. Therapeutic intervention efficacy
B. Theory-based application
C. Target population demographics
D. Timeframe for measuring the outcome
Answer: D
Conceptual Explanation: The T in PICOT stands for Time or Timeframe, which defines the
period over which the intervention’s effect is observed or the outcome is measured.
2. Which level of evidence is considered the ‘gold standard’ in the hierarchy of evidence for
intervention studies?
A. Systematic reviews of randomized controlled trials (RCTs)
,B. Expert opinion of clinical leaders
C. Case-control studies
D. Single descriptive or qualitative studies
Answer: A
Conceptual Explanation: Systematic reviews or meta-analyses of all relevant RCTs
provide the highest level of evidence, minimizing bias and providing a synthesis of high-
quality data.
3. A nurse practitioner is evaluating the ‘Internal Validity’ of a study. What is the primary
concern here?
A. The generalizability of the findings to a larger population
B. The reliability of the measurement tools used in the survey
C. The extent to which the independent variable caused the change in the dependent
variable
D. The demographic diversity of the participants
Answer: C
Conceptual Explanation: Internal validity refers to whether the experimental treatment
(independent variable) actually produced the observed effects (dependent variable) rather
than extraneous factors.
, 4. Which ethical principle from the Belmont Report requires that the benefits and burdens of
research be distributed fairly?
A. Justice
B. Autonomy
C. Beneficence
D. Non-maleficence
Answer: A
Conceptual Explanation: Justice involves fairness in distribution; it requires that the
selection of research participants is equitable and that the benefits and risks are shared
across groups.
5. In nursing research, what is a Type II error?
A. Accepting the null hypothesis when it is actually false
B. Rejecting the null hypothesis when it is actually true
C. Using an inappropriate sample size for a qualitative study
D. failing to protect participant confidentiality
Answer: A
Conceptual Explanation: A Type II error (false negative) occurs when a researcher fails to
reject a false null hypothesis, meaning they conclude there is no effect when one actually
exists.
PRACTICE NURSING COMPREHENSIVE
EXAM QUESTIONS & ANSWERS 100%
GUARANTEE PASS | UNIVERSITY OF
SOUTH ALABAMA
1. In the PICO(T) framework for evidence-based practice, what does the ‘T’ specifically
represent in a clinical query?
A. Therapeutic intervention efficacy
B. Theory-based application
C. Target population demographics
D. Timeframe for measuring the outcome
Answer: D
Conceptual Explanation: The T in PICOT stands for Time or Timeframe, which defines the
period over which the intervention’s effect is observed or the outcome is measured.
2. Which level of evidence is considered the ‘gold standard’ in the hierarchy of evidence for
intervention studies?
A. Systematic reviews of randomized controlled trials (RCTs)
,B. Expert opinion of clinical leaders
C. Case-control studies
D. Single descriptive or qualitative studies
Answer: A
Conceptual Explanation: Systematic reviews or meta-analyses of all relevant RCTs
provide the highest level of evidence, minimizing bias and providing a synthesis of high-
quality data.
3. A nurse practitioner is evaluating the ‘Internal Validity’ of a study. What is the primary
concern here?
A. The generalizability of the findings to a larger population
B. The reliability of the measurement tools used in the survey
C. The extent to which the independent variable caused the change in the dependent
variable
D. The demographic diversity of the participants
Answer: C
Conceptual Explanation: Internal validity refers to whether the experimental treatment
(independent variable) actually produced the observed effects (dependent variable) rather
than extraneous factors.
, 4. Which ethical principle from the Belmont Report requires that the benefits and burdens of
research be distributed fairly?
A. Justice
B. Autonomy
C. Beneficence
D. Non-maleficence
Answer: A
Conceptual Explanation: Justice involves fairness in distribution; it requires that the
selection of research participants is equitable and that the benefits and risks are shared
across groups.
5. In nursing research, what is a Type II error?
A. Accepting the null hypothesis when it is actually false
B. Rejecting the null hypothesis when it is actually true
C. Using an inappropriate sample size for a qualitative study
D. failing to protect participant confidentiality
Answer: A
Conceptual Explanation: A Type II error (false negative) occurs when a researcher fails to
reject a false null hypothesis, meaning they conclude there is no effect when one actually
exists.
