Why has it been difficult to do double-blind, placebo-controlled studies on the effects of steroids?
A) The federal government will not allow research with controlled substances
B) They produce detectable psychological effects, so the participants can tell when they are being given the steroid and when they are being given the placebo
C) The potency of the drugs is so variable from one sample to another
D) The researchers could face a massive lawsuit

Question

Quizplus · Accepted Answer

Steroids often produce noticeable psychological and physical effects, making it possible for participants to discern whether they are receiving the actual drug or a placebo, thus compromising the double-blind nature of the study.

Why Has It Been Difficult to Do Double-Blind, Placebo-Controlled Studies