Public Health Quiz #11: Type I and Type II Errors

1. A new drug is being tested for the treatment of hypertension. The clinical trial concludes there is a significant reduction in blood pressure after using the drug. However, in reality, the drug does not have an effect on blood pressure. This scenario exemplifies which type of error? 

Question 1 of 5

2. A research study fails to detect an actual beneficial effect of a new anticoagulant medication in reducing the risk of stroke. Which type of error does this scenario represent?

Question 2 of 5

3. In a study aiming to evaluate the efficacy of a new diet plan in reducing body weight, the researchers mistakenly conclude that the diet plan is effective due to random chance in their sample data. This mistake is an example of: 

Question 3 of 5

4. A large-scale study investigating the link between a specific vitamin deficiency and the development of a rare skin disorder concludes that there is no association, despite an actual weak association existing in the general population. This incorrect conclusion most likely represents a:

Question 4 of 5

5. During the development of a new screening test for lung cancer, a study incorrectly identifies several healthy individuals as having lung cancer. Assuming the test actually has no diagnostic value, this mistake is indicative of:

Question 5 of 5


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