ATI RN
Epidemiology Multiple Choice Questions Questions
Question 1 of 5
Which of the following statements about the statistics of suicide is correct?
Correct Answer: C
Rationale: Post-loss risk rises; A (white males), B (females higher attempts), D (correlates) false.
Question 2 of 5
In the definition of epidemiology, 'distribution' refers to: (Choose one wrong answer)
Correct Answer: D
Rationale: Epidemiology’s 'distribution' focuses on who gets the disease, when it occurs, and where it happens. 'Why' relates to causes or determinants, not distribution.
Question 3 of 5
The Iowa Women's Health Study, in which researchers enrolled 41,837 women in 1986 and collected exposure and lifestyle information to assess the relationship between these factors and subsequent occurrence of cancer, is an example of which type(s) of study? (Choose one wrong answer)
Correct Answer: A
Rationale: This prospective study of exposures is observational (B) and cohort-based (C). No randomization (A) or case-control comparison (D) applies.
Question 4 of 5
In epidemiology, the measure of central location generally preferred for summarizing skewed data such as incubation periods is the:
Correct Answer: B
Rationale: The median is preferred for skewed data like incubation periods because it’s less affected by extreme values.
Question 5 of 5
In a state that did not require varicella (chickenpox) vaccination, a boarding school experienced a prolonged outbreak of varicella among its students that began in September and continued through December. To calculate the probability or risk of illness among the students, which denominator would you use?
Correct Answer: C
Rationale: Risk (cumulative incidence) uses the initial number of susceptibles (C) to reflect those at risk at the outbreak’s start.