In an experimental design, the control condition
A) is used to create nonspecific treatment effects for the independent variable.
B) consists of an experience or treatment that the researcher thinks will affect participants' behavior.
C) establishes a baseline against which the researcher can assess the effects of a treatment.
D) creates error variance which is offset by the experimental condition.

Question

Quizplus · Accepted Answer

The control condition is an essential component of an experimental design as it establishes a baseline against which the effects of a treatment can be assessed. It allows the researcher to determine whether any changes in the behavior of participants can be attributed to the independent variable (treatment) or other factors. In other words, the control condition helps to reduce the influence of confounding variables and increases the internal validity of the study. A and B are incorrect because the control condition is not meant to create nonspecific treatment effects or to impose an experience or treatment by the researcher. D is incorrect because the control condition does not create error variance; rather, it helps to control for it.

In an Experimental Design, the Control Condition