One way scientists control for subjects' expectations in experimental research involving medication is by using ______.
A) selection factors
B) independent variables
C) dependent variables
D) placebos

Question

Quizplus · Accepted Answer

Placebos are used to control for subjects' expectations because they look and taste like the actual medication, but do not have any active ingredients. This allows researchers to compare the effects of the medication to the effects of the placebo, and determine if any observed effects are due to the medication itself or simply the subjects' expectations.

One Way Scientists Control for Subjects' Expectations in Experimental Research