determine whether the study is an experiment ...
determine whether the study is an experiment or an observational study, and then identify a major problem with the study. the physicians health study involved 22,071 male physicians. based on random selections, 11,037 of them were treated with aspirin because it became clear that aspirin reduced the risk of myocardial infarctions by a substantial amount. this is an experiment because the researchers drop - down menu the individuals. what is a major problem with the study? a. there is no blinding or replication, which has a high b. the results apply only to individuals with heart dise c. the results apply only to male physicians. d. this is a convenience sample with voluntary response, which has a high chance of leading to bias
Answer
# Brief Explanations:
An experiment involves applying a treatment to subjects. Here, researchers applied aspirin (treatment) to some male physicians. The study only included male physicians, so the results cannot be generalized to other populations like women or non - physicians.
# Answer:
This is an experiment because the researchers apply a treatment to the individuals.
C. The results apply only to male physicians.