Nokea
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.
You may also like to solve these questions
In epidemiology, the measure of central location generally preferred for summarizing skewed data such as incubation periods is the:
- A. Mean
- B. Median
- C. Midrange
- D. Mode
Correct Answer: B
Rationale: The median is less affected by outliers and skewed data.
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.
The reference protein is
- A. Egg
- B. Milk
- C. Soybean
- D. Meat
Correct Answer: A
Rationale: Egg protein is considered the reference protein due to its high biological value.
Precision stands for—
- A. Reliability
- B. accuracy
- C. consistency
- D. validity
Correct Answer: A
Rationale: Precision denotes the reliability and consistency of measurements.
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.