CCM Research Methods & Evidence-Based Practice 2

Question 1

Which study design is considered the gold standard for establishing cause-and-effect relationships in clinical research?

Accepted Answer

Randomized controlled trial (RCT)

Answer

RCTs use random assignment to treatment and control groups, minimizing bias and allowing causal inference.

Question 2

A care manager uses a validated depression screening tool because multiple studies confirm its accuracy. This practice best exemplifies:

Accepted Answer

Evidence-based practice (EBP)

Answer

EBP integrates best available research evidence with clinical expertise and patient values in decision-making.

Question 3

In a research study, internal validity refers to:

Accepted Answer

The extent to which results are free from confounding variables

Answer

Internal validity is threatened when confounders, selection bias, or measurement errors distort the true relationship between variables.

Question 4

A systematic review differs from a traditional narrative literature review primarily because it:

Accepted Answer

Uses transparent, reproducible methods to identify and synthesize all relevant studies

Answer

Systematic reviews follow explicit, pre-specified methods to minimize bias when locating, appraising, and synthesizing evidence.

Question 5

Which level of the evidence hierarchy provides the weakest support for clinical decision-making?

Accepted Answer

Expert opinion and case reports

Answer

Expert opinion and case reports sit at the bottom of the evidence hierarchy due to high susceptibility to bias.

(CCM) Certified Care Management Professional Practice Test