Interpreting health data and risk perception Quiz
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5 questions, one answer each
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1. A disease caused 600 deaths in a population of 1,500,000. What is the mortality rate per 100,000?
- A. 0.4
- B. 4
- C. 400
- D. 40
2. Which statement defines the reliability of a study?
- A. Similar results are obtained when the study is repeated
- B. The study measures what it claims to measure
- C. The sample is randomly chosen
- D. The study proves a causal link
3. In a study of exercise and CVD, which is most likely to be a confounding variable?
- A. The number of participants
- B. The date of the study
- C. The smoking habits of the participants
- D. The units of measurement
4. Why is a large sample size better than a small one?
- A. It makes the results valid
- B. It reduces the effect of chance and anomalous results
- C. It removes confounding variables
- D. It proves causation
5. People tend to overestimate the risk from events that are…
- A. familiar and under their control
- B. slow and cumulative
- C. common causes of death
- D. dramatic and heavily reported in the media