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The phenomenon that on repeated testing a high value tends to be lower, and a low value higher.

8 votes
2 answers
4k views

Pitman's test of equality of variance and testing for regression to the mean: am I doing the...

I have 2560 paired observations from an experiment in which participants provided two ratings for a set of objects, at two different points in time. Half of the objects in the set had the value of an …
Freya Harrison's user avatar