Nokea
Confidence limit can be calculated by using
- A. Mean and range
- B. Mean standard deviation
- C. Median and range deviation
- D. Median and standard
Correct Answer: B
Rationale: Confidence limits are calculated using the mean and standard deviation.
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Define the following terms: Quasi-experimental study
- A. A study design involving random assignment of participants.
- B. A study using naturally occurring groups without randomization.
- C. A controlled trial with blinding.
- D. A study focusing on individual-level outcomes.
Correct Answer: B
Rationale: Quasi-experimental studies do not involve random assignment, often using existing groups.
Govt. of Nepal formulated the Drug act in
- A. 1978
- B. 1988
- C. 1976
- D. 1986
Correct Answer: A
Rationale: The Drug Act was formulated in 1978.
Describe the significance for epidemiology of the use of natural experiments.
- A. Natural experiments allow for randomized controlled trials.
- B. Natural experiments eliminate the need for data collection.
- C. Natural experiments provide real-world data without artificial manipulation.
- D. Natural experiments are only used in laboratory settings.
Correct Answer: C
Rationale: Natural experiments study real-world conditions, providing valuable insights into disease causation and prevention.
The attributable proportion for wedding cake is:
- A. 6.10%
- B. 7.70%
- C. 68.40%
- D. 83.70%
Correct Answer: C
Rationale: Attributable proportion quantifies the risk due to exposure.
For the cruise ship scenario, how would you display the time course of the outbreak?
- A. Endemic curve
- B. Epidemic curve
- C. Seasonal trend
- D. Secular trend
Correct Answer: B
Rationale: An epidemic curve is used to show the time course of an outbreak.