In Comparative Drug Studies, Double-Blind Experiments Are Typically Used

Multiple Choice

In comparative drug studies, double-blind experiments are typically used. The purpose of keeping the diagnosing physicians ignorant of the treatment status of the experimental subjects is to

A) eliminate grounds for malpractice suits.
B) ensure that subjects were randomly assigned to treatments.
C) eliminate a possible source of bias.
D) make sure nobody is harmed.
E) prevent stratification of the experiment.