WGU C784 Evidence-Based Assessment 2026/2027
COMPLETE ACCURATE TEST EXAM ACTUAL
QUESTIONS AND CORRECT DETAILED ANSWERS
WITH RATIONALES (VERIFIED SOLUTIONS)
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2026/2027 Frequently Most Tested Questions and
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A nurse is formulating a clinical question using the PICO framework. Which
of the following represents the "I" component?
a. The group receiving standard care
b. The outcome measured after intervention
c. The intervention being considered for implementation
d. The setting where the study occurs
✔️ Correct Answer: c. The intervention being considered for implementation
Rationale:
In PICO, "I" stands for Intervention, which refers to the treatment, action, or
,exposure being evaluated. "P" is the population, "C" is comparison, and "O"
is outcome. NCLEX focus: Evidence-Based Practice / PICO Framework.
A nurse is reviewing levels of evidence. Which study provides the highest
level of evidence?
a. Case-control study
b. Randomized controlled trial
c. Expert opinion
d. Case report
✔️ Correct Answer: b. Randomized controlled trial
Rationale:
Randomized controlled trials (RCTs) are considered high-level evidence
because randomization reduces bias and allows stronger causal inference
compared to observational studies or expert opinion. NCLEX focus:
Hierarchy of Evidence.
A nurse evaluates a study and notes a p-value of 0.03. How should this be
interpreted?
a. The results are not statistically significant
b. There is a 3% chance the results are due to random variation
c. The null hypothesis should be rejected
d. The study has 97% clinical significance
,✔️ Correct Answer: c. The null hypothesis should be rejected
Rationale:
A p-value less than 0.05 indicates statistical significance, meaning the null
hypothesis is rejected and results are unlikely due to chance alone. NCLEX
focus: Statistical Significance.
A nurse is appraising a study for reliability. Which factor best indicates
reliability?
a. Consistency of results over time
b. Large sample size only
c. Random assignment of participants
d. Use of qualitative interviews
✔️ Correct Answer: a. Consistency of results over time
Rationale:
Reliability refers to the consistency or stability of results when repeated
under similar conditions. NCLEX focus: Research Validity and Reliability.
A nurse identifies a confounding variable in a research study. Which best
describes this concept?
a. A variable that is intentionally manipulated
b. A variable that influences both independent and dependent variables
c. A variable measured after the outcome
d. A variable used only in qualitative research
, ✔️ Correct Answer: b. A variable that influences both independent and
dependent variables
Rationale:
A confounding variable distorts the true relationship between independent
and dependent variables by influencing both. NCLEX focus: Research
Design / Variables.
A nurse is reviewing a systematic review. Which characteristic is expected?
a. Single patient case description
b. Combination of multiple studies using statistical methods
c. Opinion of an expert panel
d. One-time experimental observation
✔️ Correct Answer: b. Combination of multiple studies using statistical
methods
Rationale:
A systematic review synthesizes multiple studies using a structured
methodology to provide high-level evidence. NCLEX focus: Systematic
Reviews and Meta-Analysis.
A nurse reads that a study has high internal validity. What does this
indicate?
a. Results can be generalized to all populations
b. The study accurately measures what it intends to measure
COMPLETE ACCURATE TEST EXAM ACTUAL
QUESTIONS AND CORRECT DETAILED ANSWERS
WITH RATIONALES (VERIFIED SOLUTIONS)
|ALREADY GRADED A+||NEWEST VERSION
|BEST DOCUMENT FOR EXAM-2026
2026/2027 Frequently Most Tested Questions and
100% Accurate From Past papers | Graded A+ ,
Reviewed and Updated | 100% Guarantee Pass |
Latest Exam and Newest Version!!!
A nurse is formulating a clinical question using the PICO framework. Which
of the following represents the "I" component?
a. The group receiving standard care
b. The outcome measured after intervention
c. The intervention being considered for implementation
d. The setting where the study occurs
✔️ Correct Answer: c. The intervention being considered for implementation
Rationale:
In PICO, "I" stands for Intervention, which refers to the treatment, action, or
,exposure being evaluated. "P" is the population, "C" is comparison, and "O"
is outcome. NCLEX focus: Evidence-Based Practice / PICO Framework.
A nurse is reviewing levels of evidence. Which study provides the highest
level of evidence?
a. Case-control study
b. Randomized controlled trial
c. Expert opinion
d. Case report
✔️ Correct Answer: b. Randomized controlled trial
Rationale:
Randomized controlled trials (RCTs) are considered high-level evidence
because randomization reduces bias and allows stronger causal inference
compared to observational studies or expert opinion. NCLEX focus:
Hierarchy of Evidence.
A nurse evaluates a study and notes a p-value of 0.03. How should this be
interpreted?
a. The results are not statistically significant
b. There is a 3% chance the results are due to random variation
c. The null hypothesis should be rejected
d. The study has 97% clinical significance
,✔️ Correct Answer: c. The null hypothesis should be rejected
Rationale:
A p-value less than 0.05 indicates statistical significance, meaning the null
hypothesis is rejected and results are unlikely due to chance alone. NCLEX
focus: Statistical Significance.
A nurse is appraising a study for reliability. Which factor best indicates
reliability?
a. Consistency of results over time
b. Large sample size only
c. Random assignment of participants
d. Use of qualitative interviews
✔️ Correct Answer: a. Consistency of results over time
Rationale:
Reliability refers to the consistency or stability of results when repeated
under similar conditions. NCLEX focus: Research Validity and Reliability.
A nurse identifies a confounding variable in a research study. Which best
describes this concept?
a. A variable that is intentionally manipulated
b. A variable that influences both independent and dependent variables
c. A variable measured after the outcome
d. A variable used only in qualitative research
, ✔️ Correct Answer: b. A variable that influences both independent and
dependent variables
Rationale:
A confounding variable distorts the true relationship between independent
and dependent variables by influencing both. NCLEX focus: Research
Design / Variables.
A nurse is reviewing a systematic review. Which characteristic is expected?
a. Single patient case description
b. Combination of multiple studies using statistical methods
c. Opinion of an expert panel
d. One-time experimental observation
✔️ Correct Answer: b. Combination of multiple studies using statistical
methods
Rationale:
A systematic review synthesizes multiple studies using a structured
methodology to provide high-level evidence. NCLEX focus: Systematic
Reviews and Meta-Analysis.
A nurse reads that a study has high internal validity. What does this
indicate?
a. Results can be generalized to all populations
b. The study accurately measures what it intends to measure
