Question

Which research question addresses an experimental study? "What is the post-myocardial infarction recovery rate___?"

a. as perceived through the eyes of a significant other

b. in light of a person's educational background

c. for patients randomly assigned to cardiac rehabilitation

d. after patients experience their second myocardial infarction

Answer 1

c. for patients randomly assigned to cardiac rehabilitation

Options a and b describe associative studies, where only observation is performed, and no scientific conclusions can be drawn. Option d describes also, an associative study, where some scientific information can be ascertained. However, that option cannot be an experimental study.

Option c is the only option, where subjects can be randomly assigned to different experimental regimens and their progress recorded.