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. Author manuscript; available in PMC: 2015 Jun 1.
Published in final edited form as: J Autism Dev Disord. 2014 Jun;44(6):1470–1477. doi: 10.1007/s10803-013-1992-7

Table 1. Group demographics.

All Subjects Younger (6-12 yo) Older (13-18 yo)
ASD TD t p d ASD TD T p D ASD TD t p d
ASD
Severity
Score		 7.9±1.2 N/A 7.9±1.2 N/A 8.0±1.4 N/A
Sex - %
male (n)		 80%
(24)		 58%
(18)		 2.47
χ 		0.12 0.28φ 82%
(14)		 56%
(10)		 1.28
χ 		0.26 0.20φ 77%
(10)		 62%
(8)		 0.18χ 0.67 0.08φ
Chronolo
gical Age
(years)		 12.1±3.
0		 11.0
±3.1		 0.65 0.52 0.36 7.9±1.2 7.9±
1.2		 0.31 0.76 0.00 14.9±1.
8		 14.7
±1.4		 0.37 0.71 0.12
Full
Scale IQ		 111.1±1
6.1		 115.
7±1
2.1		 079 0.27 0.32 *106.3
±15.7		 *117
.3±1
0.4		 0.96 <0.05 0.82 116.9±1
5.3		 113.
8±14
.1		 0.64 0.53 0.21
Verbal
IQ (T-
score)		 *53.6±1
0.6		 *61.
9±8.
7		 1.00 <0.0
5		 0.86 *49.2±
7.3		 *59.
7±8.
7		 1.00 <0.05 1.31 59.0±11
.8		 64.5
±8.3		 0.83 0.22 0.54
Performa
nce IQ
(T-score)		 57.5±8.
4		 53.7
±8.0		 0.89 0.14 0.46 57.1±1
0.2		 57.6
±5.3		 0.39 0.88 0.06 *57.9±1
5.3		 49.3
±8.6		 0.98 <0.05 0.69

ASD = Autism spectrum disorders. TD = Typically developing control group.

*

indicates a significant between group difference (p < 0.05).

χ

indicates a χ2 value with Yates correction.

φ

indicates a Φ value for the effect size calculation of the respective χ2 test.