ATI RN
Epidemiology Exam Questions and Answers DOC Questions
Question 1 of 5
What is a key characteristic of a cohort study?
Correct Answer: B
Rationale: Cohort studies (B) track groups over time for disease onset (e.g., Framingham). A is case-control, C is cross-sectional, D is RCT.
Question 2 of 5
Which of the following is an example of a descriptive study?
Correct Answer: A
Rationale: Case reports (A) describe individual cases (e.g., new disease). B, C, and D are analytical or experimental.
Question 3 of 5
In a case-control study, what is the main outcome measure?
Correct Answer: C
Rationale: Case-control studies use odds ratio (C) to measure association. A and D are cohort measures, B is cross-sectional.
Question 4 of 5
Which of the following is an example of a confounder?
Correct Answer: C
Rationale: A confounder (C) links exposure and outcome (e.g., age in smoking-cancer). A is the exposure, B is the outcome, D is bias.
Question 5 of 5
Informed consent must include all of the following EXCEPT:
Correct Answer: C
Rationale: Informed consent excludes exact results (C) as they’re unknown pre-study. A, B, and D are required (e.g., purpose, risks, voluntariness).