Which of the following refers to the tendency of groups that have been selected for study on the basis of extreme high or low scores to regress or move toward the mean or average on second testing?
A)Statistical progression
B)Statistical maturation
C)Statistical regression
D)Statistical deterioration

Question

Quizplus · Accepted Answer

Statistical regression refers to the phenomenon where groups selected for their extreme scores on some measure tend to move toward the mean or average upon subsequent testing. This is due to the statistical principle that extreme scores are partly due to measurement error and tend to be less extreme on retesting.

Which of the Following Refers to the Tendency of Groups