Which of the following is true of a control group?
A) It consists of randomly selected subjects who receive treatment in an experiment.
B) It is involved in the frequent manipulation of all conditions in an experiment.
C) It consists of those subjects who do not receive treatment in an experiment.
D) It is involved in only correlational research in an experiment.

Question

Quizplus · Accepted Answer

A control group consists of subjects who do not receive treatment in an experiment. This allows researchers to compare the effects of the treatment to what would have happened without it. Option A is incorrect because subjects in the control group do not receive treatment. Option B is incorrect because frequent manipulation of conditions would not be appropriate for a control group. Option D is incorrect because correlational research does not involve experimental manipulation or control groups.

Which of the Following Is True of a Control Group