The tendency of scores that are particularly high or low to drift toward the mean over time is called:
A) simple linear regression.
B) standard error of the mean.
C) regression to the mean.
D) standard error of the estimate.

Question

Quizplus · Accepted Answer

Regression to the mean refers to the phenomenon where extreme scores on a variable tend to become less extreme over time and move toward the group average (or the mean). This is because extreme scores are often influenced by random factors that are not likely to persist. As a result, extreme scores are generally less reliable or stable indicators of an individual's true ability, performance, or behavior. In contrast, scores that are closer to the mean are typically more representative of an individual's typical level of functioning or performance. It is important to be aware of this phenomenon when making predictions, evaluations, or inferences based on a single measurement or assessment.

The Tendency of Scores That Are Particularly High or Low