ATI RN
Epidemiology Test Questions and Answers PDF Questions
Question 1 of 5
The term 'etiology' refers to:
Correct Answer: B
Rationale: Etiology (B) is the study of disease causes (e.g., bacteria for TB). A, C, and D are consequences or responses.
Question 2 of 5
Which of the following is an example of an observational study?
Correct Answer: B
Rationale: Cohort studies (B) are observational, tracking natural exposure-outcome links. A and D are experimental, C is lab-based.
Question 3 of 5
In an analytical study, the main focus is on:
Correct Answer: B
Rationale: Analytical studies (B) test causal hypotheses (e.g., smoking and cancer). A is descriptive, C is generation, D is clinical.
Question 4 of 5
Which of the following can help control confounding in an epidemiological study?
Correct Answer: D
Rationale: All methods (D) control confounding: randomization (A) balances variables, blinding (B) reduces bias, matching (C) pairs on confounders (e.g., age). Combined, they’re effective.
Question 5 of 5
What is the primary way to reduce information bias in a study?
Correct Answer: B
Rationale: Blinding (B) reduces information bias by masking status (e.g., double-blind trials). A, C, and D address other issues.