ATI RN
Questions on Epidemiology Questions
Question 1 of 5
Which statement best represents a correct and generally accepted finding obtained in current epidemiologic studies of autistic children?
Correct Answer: D
Rationale: Boys ~4x more affected; A/B (no SES link), C (disproven), E (genetic) false.
Question 2 of 5
Comparing numbers and rates of illness in a community, rates are preferred for: (Choose one best answer)
Correct Answer: C
Rationale: Rates adjust for population size, making them best for identifying high-risk subgroups. Numbers are better for absolute needs (B) or prevalence (D); surveillance (A) uses both.
Question 3 of 5
Which term best describes the pattern of occurrence of the three diseases noted below in a single area? A. Disease 1: usually 40-50 cases per week; last week, 48 cases B. Disease 2: fewer than 10 cases per year; last week, 1 case C. Disease 3: usually no more than 2-4 cases per week; last week, 13 cases (Choose one best answer for each disease)
Correct Answer: B
Rationale: Disease 1 is endemic (A), Disease 2 is sporadic (D), Disease 3 is an outbreak (B). B is chosen as the answer for C, per the question’s focus.
Question 4 of 5
Before calculating a standard deviation, one should ensure that: (Choose one wrong answer)
Correct Answer: C
Rationale: Standard deviation requires interval or ratio data (C is correct, but the question seeks a wrong answer). Normality (A) and sample size (B) are not prerequisites.
Question 5 of 5
A table shell is the:
Correct Answer: D
Rationale: A table shell is a pre-structured table with titles and labels, ready for data entry.