70-413 Exam Research & Evidence-Based Practice 3

Question 1

According to the hierarchy of evidence, which source provides the strongest level of evidence for clinical decision-making?

Accepted Answer

Systematic review with meta-analysis

Answer

Systematic reviews with meta-analysis synthesize findings from multiple high-quality studies, providing the strongest and most reliable evidence at the top of the evidence hierarchy.

Question 2

A 95% confidence interval for a mean difference of 5.2 is reported as (1.4, 9.0). What does this mean?

Accepted Answer

We are 95% confident the true mean difference falls between 1.4 and 9.0

Answer

A 95% confidence interval means that if the study were repeated many times, 95% of the calculated intervals would contain the true population mean difference.

Question 3

Which statistic is used in a meta-analysis to represent the combined effect of multiple studies?

Accepted Answer

Pooled effect size

Answer

A pooled effect size (such as a weighted mean difference or odds ratio) combines results from multiple individual studies in a meta-analysis to produce an overall estimate.

Question 4

In evidence-based practice, the acronym PICO stands for:

Accepted Answer

Patient, Intervention, Comparison, Outcome

Answer

PICO (Patient/Population, Intervention, Comparison, Outcome) is a framework used to structure clinical questions and guide literature searches in evidence-based practice.

Question 5

Which type of reliability measures the consistency of a test or tool across two administrations to the same group over time?

Accepted Answer

Test-retest reliability

Answer

Test-retest reliability assesses the stability of a measurement instrument by administering the same test to the same participants at two different time points and correlating the scores.

70-413 Exam Practice Test

70-413 Exam Practice Test

70-413 Exam Research & Evidence-Based Practice 3