Using participants who have been selected on the basis of their extreme scores on some measure introduces the possibility of _____ as a source of confounding.
A) history
B) maturation
C) biased selection
D) statistical regression

Question

Quizplus · Accepted Answer

Statistical regression refers to the tendency of extreme scores to move towards the mean upon retesting, which can confound results.

Using Participants Who Have Been Selected on the Basis of Their