1
WGU D617 Task 3 Evidence-Based
Intervention and Evaluation Plan
EXAM PREP | 100 Most-Tested, Most-
Difficult Questions | With Complete
Answer Rationales & Multiple Choice
Rotations | Questions 1–100 | REAL
EXAM TOPICS | Full Explanations.
Foundations of Evidence-Based Practice (1-15)
Question 1: A nurse wants to determine whether a new fall prevention protocol
reduces fall rates compared to the current protocol. Which type of PICOT
question is this?
• A) Therapy/Intervention
• B) Prevention
• C) Diagnosis
• D) Prognosis/Prediction
Answer: A) Therapy/Intervention
,2
Rationale: Questions comparing two treatments or interventions to determine
which is more effective at improving outcomes are classified as
therapy/intervention questions. The key comparison is between the new protocol
and current protocol .
Question 2: Which of the following PICOT elements is represented by "within 8
weeks of implementing the protocol"?
• A) Population
• B) Intervention
• C) Comparison
• D) Time
Answer: D) Time
Rationale: The timeframe for achieving the outcome or measuring results is the
"T" (Time) element in PICOT. This specifies when the outcome will be assessed .
Question 3: A PICOT question reads: "In adult patients on a medical-surgical unit
(P), how does a bedside shift report (I) compared to a nurses' station report (C)
affect patient satisfaction scores (O) within 4 weeks (T)?" What is the
intervention?
• A) Adult patients on a medical-surgical unit
• B) Bedside shift report
• C) Nurses' station report
,3
• D) Patient satisfaction scores
Answer: B) Bedside shift report
Rationale: The intervention is the new practice being implemented. In this
question, bedside shift report is the new approach being tested against the
comparison of nurses' station report .
Question 4: Which level of evidence is considered the strongest for determining
the effectiveness of an intervention?
• A) Case-control study
• B) Cohort study
• C) Systematic review of randomized controlled trials (RCTs)
• D) Expert opinion
Answer: C) Systematic review of randomized controlled trials (RCTs)
Rationale: Systematic reviews and meta-analyses of RCTs are at the top of the
evidence hierarchy because they synthesize the highest quality primary research
to provide comprehensive, unbiased conclusions .
Question 5: A nurse implements a new evidence-based protocol on one unit but
not on another unit to compare outcomes. This is an example of:
• A) Quality improvement project
• B) Pilot study
• C) Retrospective study
• D) Case study
, 4
Answer: B) Pilot study
Rationale: A pilot study is a small-scale test of an intervention before full
implementation. Comparing outcomes between an intervention unit and a
control unit is characteristic of a pilot or feasibility study .
Question 6: Which database is most appropriate for searching for nursing and
allied health literature?
• A) CINAHL (Cumulative Index to Nursing and Allied Health Literature)
• B) LexisNexis
• C) JSTOR
• D) ERIC
Answer: A) CINAHL
Rationale: CINAHL is the primary database for nursing and allied health research.
PubMed/Medline is also valuable, but CINAHL specifically indexes nursing journals
and literature .
Question 7: A PICO question includes "patients with heart failure." This is which
component?
• A) Population
• B) Intervention
• C) Comparison
• D) Outcome
Answer: A) Population
WGU D617 Task 3 Evidence-Based
Intervention and Evaluation Plan
EXAM PREP | 100 Most-Tested, Most-
Difficult Questions | With Complete
Answer Rationales & Multiple Choice
Rotations | Questions 1–100 | REAL
EXAM TOPICS | Full Explanations.
Foundations of Evidence-Based Practice (1-15)
Question 1: A nurse wants to determine whether a new fall prevention protocol
reduces fall rates compared to the current protocol. Which type of PICOT
question is this?
• A) Therapy/Intervention
• B) Prevention
• C) Diagnosis
• D) Prognosis/Prediction
Answer: A) Therapy/Intervention
,2
Rationale: Questions comparing two treatments or interventions to determine
which is more effective at improving outcomes are classified as
therapy/intervention questions. The key comparison is between the new protocol
and current protocol .
Question 2: Which of the following PICOT elements is represented by "within 8
weeks of implementing the protocol"?
• A) Population
• B) Intervention
• C) Comparison
• D) Time
Answer: D) Time
Rationale: The timeframe for achieving the outcome or measuring results is the
"T" (Time) element in PICOT. This specifies when the outcome will be assessed .
Question 3: A PICOT question reads: "In adult patients on a medical-surgical unit
(P), how does a bedside shift report (I) compared to a nurses' station report (C)
affect patient satisfaction scores (O) within 4 weeks (T)?" What is the
intervention?
• A) Adult patients on a medical-surgical unit
• B) Bedside shift report
• C) Nurses' station report
,3
• D) Patient satisfaction scores
Answer: B) Bedside shift report
Rationale: The intervention is the new practice being implemented. In this
question, bedside shift report is the new approach being tested against the
comparison of nurses' station report .
Question 4: Which level of evidence is considered the strongest for determining
the effectiveness of an intervention?
• A) Case-control study
• B) Cohort study
• C) Systematic review of randomized controlled trials (RCTs)
• D) Expert opinion
Answer: C) Systematic review of randomized controlled trials (RCTs)
Rationale: Systematic reviews and meta-analyses of RCTs are at the top of the
evidence hierarchy because they synthesize the highest quality primary research
to provide comprehensive, unbiased conclusions .
Question 5: A nurse implements a new evidence-based protocol on one unit but
not on another unit to compare outcomes. This is an example of:
• A) Quality improvement project
• B) Pilot study
• C) Retrospective study
• D) Case study
, 4
Answer: B) Pilot study
Rationale: A pilot study is a small-scale test of an intervention before full
implementation. Comparing outcomes between an intervention unit and a
control unit is characteristic of a pilot or feasibility study .
Question 6: Which database is most appropriate for searching for nursing and
allied health literature?
• A) CINAHL (Cumulative Index to Nursing and Allied Health Literature)
• B) LexisNexis
• C) JSTOR
• D) ERIC
Answer: A) CINAHL
Rationale: CINAHL is the primary database for nursing and allied health research.
PubMed/Medline is also valuable, but CINAHL specifically indexes nursing journals
and literature .
Question 7: A PICO question includes "patients with heart failure." This is which
component?
• A) Population
• B) Intervention
• C) Comparison
• D) Outcome
Answer: A) Population
