ATI RN
Epidemiology NCLEX Questions Questions
Question 1 of 5
In an observational study, the researcher:
Correct Answer: C
Rationale: Observational studies (C) watch natural events (e.g., diet and disease). A, B, and D are experimental.
Question 2 of 5
Which of the following is an example of coercion in research?
Correct Answer: C
Rationale: Coercion (C) involves pressure (e.g., threats to participate). A, B, and D respect autonomy.
Question 3 of 5
What does the area under the ROC curve (AUC) represent?
Correct Answer: A
Rationale: AUC (A) measures test accuracy (e.g., 0.9 = high discrimination). B, C, and D are unrelated.
Question 4 of 5
Which level of prevention is associated with health promotion activities?
Correct Answer: A
Rationale: Primary prevention (A) promotes health to prevent disease (e.g., exercise campaigns). B, C, and D focus post-onset.
Question 5 of 5
How is 'attack rate' defined in the context of an outbreak?
Correct Answer: C
Rationale: Attack rate (C) is illness among exposed (e.g., 20% in food poisoning). A is prevalence, B is CFR, D is incidence.