In an experiment, one group of participants is exposed to treatment, another is exposed to an application identified to them as treatment, and another is not exposed to any treatment. In such a procedure, the participants who are not exposed to any form of treatment, either genuine or false, are classified as the ________ group.
A) rival
B) placebo
C) experimental
D) control

Question

Quizplus · Accepted Answer

The group of participants who do not receive any form of treatment are referred to as the control group. The control group is used as a baseline to compare the effects of treatment in the experimental group and the placebo group. Therefore, option D is the best choice.

In an Experiment, One Group of Participants Is Exposed to Treatment