Regression toward the mean

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Regression toward the mean

The tendency that a random variable will ultimately have a value closer to its mean value.
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References in periodicals archive ?
Another approach to estimating premorbid IQ which does not rely on the use of regression formulae and is therefore not in danger of the regression towards the mean phenomenon, is the Best Performance Method (Lezak, 2004).
The extent of regression towards the mean can be gauged by a useful graphical tool, illustrated in Fig.
This note re-examines the main finding of Creedy's (1997a) study of income dynamics in New Zealand: regression towards the mean of taxable income and negative serial correlation.
On the abscissa they used the mean value of the methods to be compared, to avoid regression towards the mean, and on the ordinate they plotted the calculated difference between measurements by the two methods.