Concept explainers
To select the best answer for is this good evidence that ibuprofen is effective in preventing Alzheimer’s disease.
Answer to Problem 96E
Option (d) is the correct option
Explanation of Solution
The option (d) is the correct option for this exercise that is no, this is not good evidence that ibuprofen is effective in preventing Alzheimer’s disease because this is an observational study. An experiment would be needed to confirm the observed effect. While experiment, if performed correctly can prove cause and effect, observational studies are almost never able to prove that because there are simply too many confounding variables. Observational studies can only show a
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