Participants in a study who originally have extreme scores on a scale will tend to produce scores closer to the sample mean if they are retested.Which of the following best describes this trend?
A)testing effects
B)maturation
C)statistical regression
D)attrition

Question

Quizplus · Accepted Answer

This trend is known as statistical regression or regression to the mean. It describes the phenomenon where if a variable is extreme on its first measurement, it will tend to be closer to the average on its second measurement, and vice versa.

Participants in a Study Who Originally Have Extreme Scores on a Scale