Nokea
The measure of central location most commonly used with the interquartile range is the:
- A. Arithmetic mean
- B. Geometric mean
- C. Median
- D. Midrange
Correct Answer: C
Rationale: The median is typically paired with the IQR to summarize data.
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Which of the following data sources are best able to provide numerator data for the calculation of incidence of death by gunshot?
- A. Hospital discharge survey
- B. Autopsy or coroners' records
- C. National Health Survey
- D. Disease registries
Correct Answer: B
Rationale: Autopsy or coroner's records provide direct evidence of gunshot-related fatalities, essential for calculating incidence.
Define the following terms: Controlled clinical trial
- A. A study where all participants receive the same treatment.
- B. A trial comparing an intervention against a control group.
- C. A trial without any specific hypotheses.
- D. A trial conducted without ethical approval.
Correct Answer: B
Rationale: Controlled clinical trials compare interventions to a control to establish causality.
Horizontal line drawn from 50% tick mark to plotted curve intersects at median
- A. Cumulative frequency curve
- B. Survival curve
- C. Both
- D. Neither
Correct Answer: A
Rationale: This feature describes cumulative frequency curves where the median is identified.
What is meant by determinants in epidemiology?
- A. Factors influencing disease occurrence.
- B. Only genetic factors.
- C. Only environmental factors.
- D. Only behavioral factors.
Correct Answer: A
Rationale: Determinants encompass all factors—biological, environmental, and social—that contribute to disease occurrence.
In any programme target refers to:
- A. set of activities
- B. objective of programme
- C. degree of achievement
- D. evaluation to be done
Correct Answer: C
Rationale: Targets in programs refer to the degree or level of achievement expected.