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A statistical phenomenon in which, upon repeated testing, the mean of the subject group will on the second occasion fall between the group mean when first measured and the population mean – individuals with high or low scores, that is, at the extremes, will tend to move in the direction of the population mean.
(see also: regressive fallacy, Gambler's fallacy, pattern-seeking, Law of large numbers)
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Glossary of selected Judgement & Decision-making, Belief-related, and other Psychology terms A-Z » Labels:
Regression towards the mean |