Determine whether the study is an experiment or an observational study, and then

Question

Determine whether the study is an experiment or an observational study, and then identify a major problem with the study. A study involved 22,071 male physicians. Based on random selections, 11,037 of them were treated with aspirin and the other 11,034 were given placebos. The study was stopped early because it became clear that aspirin reduced the risk of myocardial infarctions by a substantial amount. This is an Vbecause the researchers the individuals What is a major problem with the study? O A. O B. O C. O D. There is no blinding or replication, which has a high chance of leading to bias. The results apply only to male physicians. This is a convenience sample with voluntary response, which has a high chance of leading to bias. The results apply only to individuals with heart disease Click to select your answer.

Explanation / Answer

Solution:-

=> This is an experiment because the researchers apply a treatment to the individuals.

=> option B. The results apply only to male physicians.

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