ATI RN
Epidemiology Exam Questions Questions
Question 1 of 5
Population-based epidemiologic surveys in the U.S. using standardized diagnostic interviews have been conducted among adults ages 18 and over. According to the responses to these surveys, which of the following statements is true?
Correct Answer: B
Rationale: ~5% past 6 months; A (depression), C (most untreated), D (anxiety broader) false.
Question 2 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 3 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 4 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 5 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.