Table 1.
Descriptive statistics for the ASD (n = 17) and the control group (n = 17) and group comparisons. Each participant in the control group was matched with respect to chronological age, gender, intelligence quotient (IQ), and handedness to the profile of one ASD participant.
| Control (n = 17) |
ASD (n = 17) |
||||
|---|---|---|---|---|---|
| Gender |
13 males, 4 females |
13 males, 4 females |
|||
| Handednessa |
14 right, 3 left |
14 right, 3 left |
|||
| M | SD (range) | M | SD (range) | p | |
| Age | 32.65 | 11.08 (21–55) | 31.47 | 10.82 (21–54) | 0.756 |
| WAIS-IIIb scales | |||||
| Full scale IQ | 107.12 | 8.17 (91–121) | 105.35 | 10.64 (87–124) | 0.591 |
| Verbal IQ | 106.29 | 10.84 (89–130) | 109.06 | 12.61 (91–138) | 0.498 |
| Performance IQ | 106.76 | 8.78 (90–121) | 100.12 | 9.76 (82–120) | 0.045⁎ |
| Working memory | 103.76 | 11.44 (88–126) | 105.65 | 13.32 (86–146) | 0.662 |
| Concentrationc | 105.12 | 7.66 (86–114) | 101.82 | 11.73 (84–126) | 0.341 |
| AQd | 17.06 | 4.07 (10–25) | 37.94 | 7.82 (14–47) | 0.000⁎ |
a
Handedness was assessed using the Edinburgh handedness questionnaire (Oldfield, 1971).
b
WAIS-III = German adapted version of the Wechsler Adult Intelligence Scale (Wechsler, 1997; M = 100; SD = 15).
c
Concentration = d2 test of attention (Brickenkamp, 2002; M = 100; SD = 10).
d
AQ = Autism Spectrum Quotient (Baron-Cohen et al., 2001).
⁎
Significant group differences (p < .05); M = mean; SD = standard deviation.