The fact that participants are matched on measures of characteristics rather than on the characteristics themselves makes matching vulnerable to:
A) Testing effects
B) Selection by maturation effects
C) Regression
D) Maturation

Question

Quizplus · Accepted Answer

Matching on measures rather than characteristics can lead to regression effects, as extreme scores tend to regress towards the mean upon retesting.

The Fact That Participants Are Matched on Measures of Characteristics