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Statistical Reversion Toward the Mean: More Universal Than Regression Toward the Mean

Myra L. Samuels
The American Statistician
Vol. 45, No. 4 (Nov., 1991), pp. 344-346
DOI: 10.2307/2684474
Stable URL: http://www.jstor.org/stable/2684474
Page Count: 3
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Statistical Reversion Toward the Mean: More Universal Than Regression Toward the Mean
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Abstract

Schmittlein discussed the lack of universality of regression toward the mean. The present note emphasizes the universality of a similar effect, dubbed "reversion" toward the mean, defined as the shift in conditional expectation of the upper or lower portion of a distribution. Reversion toward the mean is a useful concept for statistical reasoning in applications and is more self-evidently plausible than regression toward the mean.

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