Studying health risk and perceptions of risk Quiz
Studying this course? Keep your progress in one place.
Pick an answer for each. Quizzes never use energy.
5 questions, one answer each
Each answer is checked as you go, with why.
See all 5 questions
1. Town P has 90 deaths in a population of 60 000. What is its mortality rate per 100 000?
- A. 90
- B. 667
- C. 0.15
- D. 150
2. Which is a confounding variable in a study linking coffee drinking to CHD?
- A. The number of cups of coffee
- B. The year of the study
- C. Smoking, which is more common in heavy coffee drinkers
- D. The sample size
3. Which change would make a health risk study more reliable?
- A. Using volunteers from one gym
- B. Increasing the sample size
- C. Using a questionnaire only
- D. Studying for a shorter time
4. Why might a smoker underestimate their risk of CHD?
- A. The effects are long-term, the risk feels under personal control and they think it will not happen to them
- B. CHD is rare in smokers
- C. They have read the statistics carefully
- D. Smoking lowers LDL
5. Two studies disagree about a risk factor. Which is the best response?
- A. Accept the first study
- B. Accept the shorter study
- C. Ignore both
- D. Compare sample size, duration, controls and measurements