A control group
A) does not take part in the experiment
B) is treated the same as the experimental group but is not tested
C) is treated the same as the experimental group except for the independent variable
D) is treated the same as the experimental group except for the dependent variable

Question

Quizplus · Accepted Answer

A control group is used to establish a baseline for comparison with the experimental group, which is exposed to the independent variable. In order to isolate the effect of the independent variable, the control group must be treated the same as the experimental group in all other respects, except for the independent variable. Therefore, choice C is correct, since the control group and the experimental group are treated the same except for the independent variable.

A Control Group