Nokea
The fraction 50 / 53 is a/an:
- A. Attack rate
- B. Food-specific attack rate
- C. Incidence proportion
- D. Proportion
Correct Answer: A
Rationale: This fraction represents the attack rate among those exposed to wedding cake.
You may also like to solve these questions
Married-unmarried, child-adult, male-female is
- A. Ordinal scale
- B. Interval scale
- C. Ratio scale
- D. Nominal scale
Correct Answer: D
Rationale: These categories represent nominal scales as they classify without any inherent order.
M.S in Public Health in IOM was stopped in
- A. 1996
- B. 1997
- C. 1998
- D. 1999
Correct Answer: A
Rationale: The MS in Public Health program at IOM was discontinued in 1996.
UNFPA established in
- A. 1969
- B. 1954
- C. 1949
- D. 1974
Correct Answer: A
Rationale: The United Nations Population Fund (UNFPA) was established in 1969.
Population doubling time is
- A. Growth rate(GR%)/70
- B. 70/GR%
- C. 60/GR%
- D. GR%/60
Correct Answer: B
Rationale: Population doubling time is calculated using the formula 70/GR%, where GR% is the annual growth rate expressed as a percentage.
Case-control studies allow the investigator to examine only one outcome at a time, but they permit examination of several different exposures at a time. Select a disease or other health outcome with which you are familiar and see how many potential exposures you can identify.
- A. Cancer
- B. Diabetes
- C. Heart disease
- D. Infectious diseases
Correct Answer: A
Rationale: For example, in cancer studies, multiple exposures such as smoking, diet, radiation, and genetics can be assessed simultaneously.