Table 1.

Demographic and independent variables

	Autism			Neurotypical
Variable	Mean	SD	Range	Mean	SD	Range	t-score	df	P value
Age	10.0	1.1	8.0-12.0	9.9	1.5	8.1-12.5	0.18	43	0.86
IQ	89.7	14.7	75-125	121.0	12.4	99-142	-7.77	43	< 0.0005
SRS	104.4	32.3	58-164	22.3	16.7	4-61	10.78	41	< 0.0005
SCQ	25.0	6.2	12-34	2.6	2.4	0-9	16.18	40	< 0.0005

SD, standard deviation; SRS, Social Responsiveness Scale; SCQ, Social Communication Questionnaire; df , degrees of freedom.