Table 2.

Correlation of gain with alternative pretest measure

Dataset	1 (real compensation)			2 (regression to the mean)
	r	95%CI	p	r	95%CI	p
N = 28	− .26	[−.57,.11]	.15	0	[−.36,.36]	.998
N = 48	− .27	[−.51,.01]	.06	0	[−.28,.28]	.993
N = 80	− .27	[−.46,−.053]	.015 *	0	[−.22,.22]	> .999
N = 300	− .27	[−.37,−.16]	< .001 ***	0	[−.11,.11]	> .999

* p < .05, ** p < .01, *** p < .001