Question

A report in a medical journal notes that the risk of developing Alzheimer’s disease among subjects who regularly opted to take the drug ibuprofen was about half the risk of those who did not. Is this good evidence that ibuprofen is effective in preventing Alzheimer’s disease?

Answer 1

The answer is: No.

Step-by-step explanation:

According to the example given the answer would be: No. Because the researcher does not influence the responses in any way. This person is just watching a report. This is called an observational study. An experiment would be needed to confirm the effectiveness that ibuprofen can have.