. Author manuscript; available in PMC: 2011 Jan 1.

Published in final edited form as: Am J Intellect Dev Disabil. 2010 Jan 11;115(4):307–326. doi: 10.1352/1944-7558-115.4.307

Table 7.

Hierarchical Regression Predicting ADI-R Communication Domain Current Total Score

	B	SE B	β	semipartial
Step 1
Constant	5.12	.63
FMRP	− 4.66	2.24	− .31^*	− .31
Step 2
Constant	9.86	1.89
FMRP	.07	2.76	.00	.00
Nonverbal IQ	− .11	.04	− .49^**	− .37

Note: R² = .10 for Step 1, ΔR² = .14 for Step 2.

p<.05

^**

p<.01