In the double-blind procedure, some subjects receive an active drug while others receive a neutral, inactive substance called a ________.

Question

Quizplus · Accepted Answer

In a double-blind procedure, neither the participants nor the researchers know who is receiving the active drug or the placebo, which helps to prevent bias in the study. The placebo serves as a control group to compare the effects of the active drug, as it should have no physiological effects on the body. Therefore, the correct choice is A) Placebo. Choices B, C, and D are not relevant to the double-blind procedure.

In the Double-Blind Procedure, Some Subjects Receive an Active Drug