A good control group ________.
A) contains at least one confound
B) has a limited number of dependent variables
C) has a limited number of research participants
D) holds constant all variables in the experiment

Question

A good control group ________.
A) contains at least one confound
B) has a limited number of dependent variables
C) has a limited number of research participants 
D) holds constant all variables in the experiment

Quizplus · Accepted Answer

A good control group holds constant all variables in the experiment in order to isolate the effects of the independent variable on the dependent variable. A control group that contains confounds or has a limited number of dependent variables or research participants can compromise the validity of the experiment.

A Good Control Group ________