ATI RN
Epidemiology Exam Questions Questions
Question 1 of 5
The median is the value that:
Correct Answer: C
Rationale: The median is the middle value, splitting the dataset into two equal halves.
Question 2 of 5
In frequency distributions, observations with missing values should be excluded.
Correct Answer: B
Rationale: Missing values are typically reported separately in frequency distributions, not excluded.
Question 3 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 4 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 5 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.