The matched-groups design is most useful when:
A) a randomized two-group design would be too time-consuming.
B) you suspect that some subject characteristics are strongly correlated with your independent variable.
C) you suspect that no relationship exists between subject characteristics and your dependent variable.
D) you cannot manipulate independent variables.

Question

Quizplus · Accepted Answer

The matched-groups design is used to control for subject characteristics that might influence the dependent variable by matching participants on those characteristics, ensuring they are equally distributed across groups.

The Matched-Groups Design Is Most Useful When