Which of the following features characterizes fami

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Epidemiology Practice Questions Questions

Question 1 of 5

Which of the following features characterizes families in which spouse abuse occurs?

A. Husbands of battered women have less education than those of nonbattered women B. Women who were abused as children are more likely to be abused by their spouses C. Women whose mothers suffered abuse are unlikely to be abused by their own husbands D. Men who batter women are prosecuted in 25 percent of cases

Correct Answer: B

Rationale: Childhood abuse increases risk; others false.

Question 2 of 5

A cohort study differs from a case-control study in that: (Choose one wrong answer)

A. Subjects are enrolled or categorized on the basis of their exposure status in a cohort study but not in a case-control study B. Subjects are asked about their exposure status in a cohort study but not in a case-control study C. Cohort studies require many years to conduct, but case-control studies do not D. Cohort studies are conducted to investigate chronic diseases, case-control studies are used for infectious diseases

Correct Answer: B

Rationale: Cohort studies start with exposure (A), unlike case-control’s outcome focus. Both ask about exposure (B is wrong), and C and D are not universally true.

Question 3 of 5

Which of the following are considered measures of spread? (Choose one wrong answer)

A. Interquartile range B. Percentile C. Range D. Standard deviation

Correct Answer: B

Rationale: IQR (A), range (C), and standard deviation (D) measure spread. Percentiles (B) indicate position, not spread.

Question 4 of 5

What is the following fraction? Number of children <365 days of age who died in Country A in 2004 / Number of live births in Country A in 2004

A. Ratio B. Proportion C. Incidence proportion D. Mortality rate

Correct Answer: D

Rationale: This fraction is the infant mortality rate, a specific type of mortality rate.

Question 5 of 5

A frequency polygon differs from a line graph because a frequency polygon:

A. Displays a frequency distribution; a line graph plots data points B. Must be closed (plotted line must touch x-axis) at both ends C. Cannot be used to plot data over time D. Can show percentages on the y-axis; a line graph cannot

Correct Answer: A

Rationale: Frequency polygons represent distributions, while line graphs show trends over time.

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Which of the following features characterizes families in which spouse abuse occurs?

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