Social Science Researchers Use a Control Group That Hasn't Received

Multiple Choice

Social science researchers use a control group that hasn't received the experimental stimulus in order to do what?

A) to measure the effect of the independent variable upon the control group
B) as another measure of the effect the independent variable has upon the dependent variable in the experimental group
C) as another measure of the effect the independent variable has upon the dependent variable in the control group
D) to measure the effect of the dependent variable upon the independent variable in the control group