Which of the following is NOT true of control variables?
A)Control variables help define the control group.
B)Control variables help establish internal validity.
C)Control variables are essential in experimental designs.
D)Control variables are kept the same for all participants.

Question

Quizplus · Accepted Answer

Control variables are factors that researchers keep constant to prevent them from influencing the outcome of an experiment. They do not define the control group; rather, they ensure that the only difference between various groups in an experiment is the independent variable being tested.

Which of the Following Is NOT True of Control Variables