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Awesomedude8888's definitions

RTTM

Regression Towards The Mean
In statistics, regression toward the mean (RTTM for short) is the phenomenon that if a variable is extreme on its first measurement, it will tend to be closer to the average on its second measurement—and, paradoxically, if it is extreme on its second measurement, it will tend to have been closer to the average on its first.
by Awesomedude8888 December 18, 2014
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