Is the study experimental or observational
-Researchers at a medical school want to compare two methods of treating blocked arteries. Fifty patients in similar condition are randomly assigned to two groups. One group is treated surgically and the other group is treated with drugs.
A) Observational
B) Experimental

Question

Quizplus · Accepted Answer

The study is experimental because the researchers are actively assigning treatments to the patients, rather than just observing them.

Is the Study Experimental or Observational