regression to the mean

regression to the mean
The phenomenon by which extreme examples from any set of data are likely to be followed by examples which are less extreme; a tendency towards the average of any sample. For example, the offspring of two very tall individuals tend to be tall, but closer to the average (mean) than either of their parents.

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  • Regression toward the mean — In statistics, regression toward the mean (also known as regression to the mean) is the phenomenon that if a variable is extreme on its first measurement, it will tend to be closer to the average on a second measurement, and a fact that may… …   Wikipedia

  • regression toward the mean — the statistical tendency in successive generations to exhibit values closer and closer to the mean; see Galton s law of regression, under law …   Medical dictionary

  • Regression toward the mean — The tendency for subsequent observations of a random variable to be closer to its mean. The New York Times Financial Glossary …   Financial and business terms

  • regression toward the mean — The tendency that a random variable will ultimately have a value closer to its mean value. Bloomberg Financial Dictionary …   Financial and business terms

  • regression toward the mean — noun the relation between selected values of x and observed values of y (from which the most probable value of y can be predicted for any value of x) • Syn: ↑regression, ↑simple regression, ↑statistical regression • Topics: ↑statistics •… …   Useful english dictionary

  • Regression fallacy — The regression (or regressive) fallacy is an informal fallacy. It ascribes cause where none exists. The flaw is failing to account for natural fluctuations. It is frequently a special kind of the post hoc fallacy. Explanation Things like stock… …   Wikipedia

  • regression — regression, regression analysis A term used originally to describe the fact that if, for example, parents and children s weights are measured, the children s weights tend to be closer to the average than are those of their parents: unusually… …   Dictionary of sociology

  • Regression — could refer to:* Regression (psychology), a defensive reaction to some unaccepted impulses * Past life regression, (psychology) a process claiming to retrieve memories of previous lives * Software regression, (software engineering) the appearance …   Wikipedia

  • Mean reversion — may refer to: See: Regression toward the mean Ornstein–Uhlenbeck process Mean reversion (finance) This disambiguation page lists articles associated with the same title. If an …   Wikipedia

  • regression analysis — noun the use of regression to make quantitative predictions of one variable from the values of another • Topics: ↑statistics • Hypernyms: ↑multivariate analysis • Part Meronyms: ↑regression, ↑simple regression, ↑ …   Useful english dictionary

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