Table 2.

Relations of ASD status to age, sex, intellectual abilities, expressive and receptive language, and adaptive behavior as a function of ASD measure.

Variable	ADI-R		ADOS classification		ADOS Comparison Score		Clinical Diagnosis
	Statistic	p	Statistic	p	Statistic	p	Statistic	p
Chronological Age	z = 0.27	.784	z = −0.33	.742	rho(63) = .06	.670	z = −1.58	.115
Sex	Fisher’s Exact 1 sided	.005**	Fisher’s Exact 1−sided	.029*	z = −2.20	.027*	Fisher’s Exact 1-sided	.051
DAS-II GCA (“IQ”)	z = −2.99	.003**	z = −2.18	.029*	rho(63) = −.28	.029*	z = −1.66	.098
DAS-II Verbal Cluster SS	z = −1.72	.085	z = −1.87	.062	rho(63) = −.26	.036*	z = −1.54	.123
DAS-II Nonverbal Cluster SS	z = −2.35	.019*	z = −1.55	.121	rho(63) = −.24	.056	z = −1.69	.091
DAS-II Spatial SS	z = −3.20	.001**	z = −1.93	.054	rho(63) = −.21	.094	z = −2.99	.062
PPVT-4 SS	z = −3.11	.002**	z = −1.79	.073	rho(63) = −.23	.065	z = −1.56	.119
EVT-2 SS	z = −1.24	.216	z = −1.33	.185	rho(63) = −.25	.050*	z = −1.25	.210
SIB-R Broad Independ. SS	z = −3.21	.001**	z = −2.93	.003**	rho(63) = −.30	.019*	z = −2.70	.007**
SIB-R Motor Skills SS	z = −2.75	.006**	z = −2.38	.017*	rho(63) = −.24	.064	z = −2.44	.015*
SIB-R Social & Comm. SS	z = −2.92	.003**	z = −2.68	.007**	rho(63) = −.30	.016*	z = −2.28	.022*
SIB-R Personal Living SS	z = −3.23	.001**	z = −3.29	.001**	rho(63) = −.36	.004**	z = −2.54	.011*
SIB-R Comm. Living SS	z = −2.43	.015*	z = −2.41	.016*	rho(63) = −.25	.052	z = −2.78	.006**

Note: Negative Z-values indicate that the distribution of SSs was higher for the NS group than for the ASD group.

A significant sex difference indicates that boys had more difficulty than girls.

^*p < .05;

^**p < .01.