In a matched-subjects design
A) the groups of subjects are equated on the basis of overall averages.
B) the subjects in the groups are matched person-for-person.
C) the matching of all subjects is done statistically, after the fact.
D) the matching is based completely on the IV manipulation.

Question

Quizplus · Accepted Answer

In matched-subjects design, the subjects in the groups are matched person-for-person based on some relevant characteristic such as age, gender or intelligence. This is done to increase the control over extraneous variables that might affect the results of the study. The matching is done before any treatment or manipulation occurs, and the goal is to eliminate or reduce the effects of the matching variable on the outcome variable. Therefore, choice B is the correct answer.

In a Matched-Subjects Design