WGU D547 Evidence-Based
Healthcare – APN1 Task 1 Data
Analysis | 2026–2027
200 Multiple-Choice Questions for Revision
Description: This comprehensive revision set covers key concepts in evidence-based
healthcare, data analysis, research methods, and clinical decision-making for the WGU
D547 APN1 Task 1 assessment.
Keywords: Evidence-based practice, data analysis, research methodology, biostatistics,
clinical inquiry, APN, D547, WGU, quality improvement, PICOT, study design, validity,
reliability, levels of evidence.
Questions 1–50: Foundations of Evidence-Based Practice
1. Which of the following best defines evidence-based practice (EBP)?
A. Using intuition and clinical experience alone to guide patient care
B. Integrating the best available research evidence with clinical expertise and patient
values ✅
C. Following hospital protocols without questioning their basis
D. Relying solely on randomized controlled trials for all clinical decisions
,2. What is the primary purpose of the PICOT framework?
A. To calculate statistical significance
B. To formulate a structured clinical question for research ✅
C. To determine sample size
D. To evaluate hospital accreditation
3. In the PICOT acronym, what does the "I" represent?
A. Implementation
B. Intervention ✅
C. Investigation
D. Indicator
4. Which component of PICOT refers to the population or patient problem?
A. P ✅
B. I
C. C
D. O
,5. A nurse asks, "In adult patients with diabetes, does a low-carbohydrate diet
compared to a standard diet reduce HbA1c levels within 6 months?" What is the
"C" in this PICOT question?
A. Adult patients with diabetes
B. Low-carbohydrate diet
C. Standard diet ✅
D. HbA1c levels
6. Which of the following is considered the highest level of evidence in the
traditional hierarchy?
A. Expert opinion
B. Cohort study
C. Systematic review of randomized controlled trials ✅
D. Case report
7. What is the main purpose of a systematic review?
A. To present a single patient's experience
B. To comprehensively synthesize all relevant studies on a specific question ✅
C. To describe a new surgical technique
, D. To report anecdotal evidence
8. Which type of study design is most appropriate for establishing causation?
A. Cross-sectional study
B. Randomized controlled trial ✅
C. Case-control study
D. Qualitative study
9. What does "levels of evidence" refer to in EBP?
A. The cost of research studies
B. A ranking system based on study design rigor and validity ✅
C. The number of participants in a study
D. The geographic location of research
10. Which of the following is a characteristic of a good clinical question?
A. It is broad and vague
B. It is specific, answerable, and clinically relevant ✅
Healthcare – APN1 Task 1 Data
Analysis | 2026–2027
200 Multiple-Choice Questions for Revision
Description: This comprehensive revision set covers key concepts in evidence-based
healthcare, data analysis, research methods, and clinical decision-making for the WGU
D547 APN1 Task 1 assessment.
Keywords: Evidence-based practice, data analysis, research methodology, biostatistics,
clinical inquiry, APN, D547, WGU, quality improvement, PICOT, study design, validity,
reliability, levels of evidence.
Questions 1–50: Foundations of Evidence-Based Practice
1. Which of the following best defines evidence-based practice (EBP)?
A. Using intuition and clinical experience alone to guide patient care
B. Integrating the best available research evidence with clinical expertise and patient
values ✅
C. Following hospital protocols without questioning their basis
D. Relying solely on randomized controlled trials for all clinical decisions
,2. What is the primary purpose of the PICOT framework?
A. To calculate statistical significance
B. To formulate a structured clinical question for research ✅
C. To determine sample size
D. To evaluate hospital accreditation
3. In the PICOT acronym, what does the "I" represent?
A. Implementation
B. Intervention ✅
C. Investigation
D. Indicator
4. Which component of PICOT refers to the population or patient problem?
A. P ✅
B. I
C. C
D. O
,5. A nurse asks, "In adult patients with diabetes, does a low-carbohydrate diet
compared to a standard diet reduce HbA1c levels within 6 months?" What is the
"C" in this PICOT question?
A. Adult patients with diabetes
B. Low-carbohydrate diet
C. Standard diet ✅
D. HbA1c levels
6. Which of the following is considered the highest level of evidence in the
traditional hierarchy?
A. Expert opinion
B. Cohort study
C. Systematic review of randomized controlled trials ✅
D. Case report
7. What is the main purpose of a systematic review?
A. To present a single patient's experience
B. To comprehensively synthesize all relevant studies on a specific question ✅
C. To describe a new surgical technique
, D. To report anecdotal evidence
8. Which type of study design is most appropriate for establishing causation?
A. Cross-sectional study
B. Randomized controlled trial ✅
C. Case-control study
D. Qualitative study
9. What does "levels of evidence" refer to in EBP?
A. The cost of research studies
B. A ranking system based on study design rigor and validity ✅
C. The number of participants in a study
D. The geographic location of research
10. Which of the following is a characteristic of a good clinical question?
A. It is broad and vague
B. It is specific, answerable, and clinically relevant ✅
