Nokea
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.
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What types of challenges impact the availability of a safe water supply?
- A. Pollution, aging infrastructure, climate change.
- B. Excessive rainfall, low temperatures.
- C. Unlimited freshwater sources, advanced filtration.
- D. High public investment, minimal regulation.
Correct Answer: A
Rationale: Challenges include pollution, deteriorating infrastructure, and climate change affecting water resources.
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.
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.
The measure of spread most affected by one extreme value is the:
- A. Interquartile range
- B. Range
- C. Standard deviation
- D. Mean
Correct Answer: B
Rationale: The range depends only on the largest and smallest values, making it sensitive to outliers.
A case report form devised for an outbreak investigation usually includes which of the following types of information?
- A. Identifying information
- B. Demographic information
- C. Clinical information
- D. Risk factor information
Correct Answer: A
Rationale: Case report forms typically collect detailed demographic, clinical, and risk factor information.