A matched pairs design is used when
A) it is too expensive to use simple random assignment.
B) an investigator wants to "match" participants on two variables.
C) a researcher wants to ensure that independent groups are equivalent on some participant characteristic.
D) a nonexperimental design restricts the population of participants.

Question

Quizplus · Accepted Answer

A matched pairs design is used to ensure that independent groups are equivalent on some participant characteristic by matching participants on that characteristic before assigning them to different groups. This helps to control for the effect of that characteristic on the outcome variable.

A Matched Pairs Design Is Used When