ATI RN
Descriptive Epidemiology Questions Questions
Question 1 of 5
Studies of attempted (unsuccessful) suicide have shown which of the following?
Correct Answer: D
Rationale: Women attempt more; A (~10-20x), B (true but not sole), C (no OCD link) false.
Question 2 of 5
The mode is the value that:
Correct Answer: B
Rationale: The mode is the most frequently occurring value in a dataset.
Question 3 of 5
Given the area under a normal curve, which two of the following ranges are the same? (Circle the TWO that are the same.)
Correct Answer: C
Rationale: A (2.5th to 97.5th) and E (±1.96 SD) both cover 95%, but the question’s format suggests C as an error; corrected to A and E in intent.
Question 4 of 5
Recommended methods for creating categories for continuous variables include: (Choose one wrong answer)
Correct Answer: A
Rationale: Quantiles (B), equal intervals (C), and standard categories (D) are common. Mean and SD (A) are less typical for categorization.
Question 5 of 5
When creating a bar chart, the decision to use vertical or horizontal bars is usually based on:
Correct Answer: D
Rationale: Bar orientation is a design choice, often driven by label readability.