. Author manuscript; available in PMC: 2014 Oct 1.

Published in final edited form as: J Autism Dev Disord. 2013 Oct;43(10):2341–2352. doi: 10.1007/s10803-013-1775-1

Table 2.

Correlations^a between CASI-Anxiety and other behavior measures

	Measure	Total Sample (n=415)	IQ<70 (n =200)^b	IQ≥70 (n=192)^b
Aberrant Behavior Checklist	Irritability	0.31^**	0.40^**	0.31^**
	Social Withdrawal	0.22^**	0.35^**	0.20^**
	Stereotypy	0.13^**	0.25^**	0.19^*
	Hyperactivity	0.23^**	0.35^**	0.20^**
	Inappropriate Speech^a	0.31^**	0.42^**	0.21^**

Vineland Adaptive Behavior	Communication	017^**	0.15^*	−0.05
	Daily Living	0.13^**	0.21^**	−0.13
	Socialization	0.18^**	0.14	0.07

	CYBOCS-PDD^a	0.08	0.08	0.18^*

CASI	PDD scale	0.17^**	0.29^**	0.24^**

p<0.05;

^**

p<0.01

Pearson’s correlations were used for the majority of the subscales. Spearman’s rank correlations were used for the Inappropriate Speech and CYBOCS-PDD subscales owing to non-normal distributions.

IQ was unavailable for 23 subjects

Fisher’s r-to-z transformation was used to compare correlations in the lower vs higher IQ groups. Shaded cells indicate a significant group difference.