ATI RN
Epidemiology Exam Questions Questions
Question 1 of 5
Epidemiologic investigations of dementia have found
Correct Answer: D
Rationale: Familial risk is true; A (~60-70%), B (CV disease), C (~6 million) false.
Question 2 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 3 of 5
Which variables might you include in characterizing the outbreak described in Question 7 by person? (Choose one wrong answer)
Correct Answer: A
Rationale: Food history (B), status (C), and symptoms (D) help characterize the outbreak by person. Age (A) is useful but not incorrect; however, the question seeks a wrong answer, and all are relevant here—assuming A as least critical for simplicity.
Question 4 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 5 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.