Table 2.

Characterization of subjects with autistic disorder.

SRS total raw score	109.9 ± 25.9
ABC irritability Subscale	16.8 ± 11.3
ABC social withdrawal subscale	11.2 ± 7.8
ABC stereotypy subscale	7.7 ± 4.8
ABC hyperactivity subscale	19.9 ± 12.5
ABC inappropriate speech subscale	4.9 ± 3.9
SRS total raw score	109.9 ± 25.9
Full scale IQ	63.2 ± 21.6
Vineland adaptive behavior composite score	61.1 ± 18.3

All values reported as mean ± standard deviation.

N = 45 for all measures except IQ testing N = 32. IQ measured by Stanford Binet 5th Edition, verbal subjects and Lieter Revised for non-verbal subjects.

SRS = Social Responsiveness Scale, ABC = Aberrant Behavior Checklist.