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. Author manuscript; available in PMC: 2010 Jun 20.
Published in final edited form as: Psychol Med. 2008 Sep 24;39(8):1347–1354. doi: 10.1017/S0033291708004376

Table 1.

Subject characteristics

Autism Control t-test
N = 22 N = 22 df = 42
Mean (range) SD Mean (range) SD T p
Age (years) 10.7 (8.1–12.9) 1.4 10.5 (7.9–13.0) 1.4 0.318 0.752
Full-scale IQ 92.3 (64–128) 17.0 116.9 (91–134) 13.1 −5.381 < 0.001
SES 4.5 (3–5) 0.59 4.41 (3–5) 0.59 0.522 0.604
TBV 1347 (1132–1608) 121 1357 (1208–1549) 100 −0.309 0.759

SES = socioeconomic status; TBV = total brain volume (cc); age in years