ATI RN
Epidemiology Exam Questions Questions
Question 1 of 5
The primary use of the standard error of the mean is in calculating the:
Correct Answer: A
Rationale: The standard error of the mean estimates precision for calculating confidence intervals around the mean.
Question 2 of 5
As described in this lesson, public health surveillance includes which activities? (Choose one wrong answer)
Correct Answer: C
Rationale: Surveillance encompasses collecting (A), analyzing (B), interpreting (C), and disseminating (D) data; C is correct, so misinterpreted—none are wrong.
Question 3 of 5
Criteria for prioritizing health problems for surveillance include which of the following? (Choose one wrong answer)
Correct Answer: C
Rationale: Prioritization considers incidence (A), concern (B), and impact (D). Previous studies (C) are less relevant.
Question 4 of 5
A case definition during an outbreak investigation should specify: (Choose one wrong answer)
Correct Answer: D
Rationale: Case definitions include clinical features (A), time (B), and place (C). Hypothesized exposure (D) is added later.
Question 5 of 5
John Snow’s investigation of cholera is considered a model for epidemiologic field investigations because it included a: (Choose one wrong answer)
Correct Answer: C
Rationale: Snow’s study used a hypothesis, comparison, and map. Multivariate models were beyond his era.