The experimental and control groups should be the same in every respect except for the
A) number of subjects in each group.
B) variation created by the manipulation of the independent variable.
C) assumptions underlying the research question.
D) method of measuring the dependent variable.

Question

Quizplus · Accepted Answer

It is important for the experimental and control groups to be the same in every aspect except for the variation created by the manipulation of the independent variable. This is because you want to isolate the effect of the independent variable on the dependent variable and eliminate any other extraneous factors that could affect the results. The number of subjects in each group, assumptions underlying the research question, and method of measuring the dependent variable should also be the same for both groups to ensure a fair comparison.

The Experimental and Control Groups Should Be the Same in Every