Table 1.
Demographic Information.
| ASD (n = 56) | Typically-developing (n = 31) | |||||||
|---|---|---|---|---|---|---|---|---|
| Mean | SD | Range | Mean | SD | Range | t | p | |
| Age in years | 12.00 | 4.37 | 5.00–19.75 | 11.98 | 4.01 | 5.25–19.33 | 0.02 | 0.98 |
| Head Circumference (cm) | 54.71 | 5.81 | 50.70–60.50 | 55.34 | 2.13 | 51.80–60.50 | –0.00 | 0.99 |
| Total Intracranial Volume (TICV,cm3) | 1672.32 | 157.84 | 1268.66–2063.84 | 1675.94 | 176.45 | 1399.97–2171.21 | 0.10 | 0.92 |
| Handedness Inventory | 61.45 | 54.78 | –100–100 | 65.28 | 44.97 | –80–100 | 0.01 | 0.99 |
| Wechsler FIQ | 98.26 | 16.63 | 61–137 | 115.24 | 15.57 | 87–152 | 4.53 ** | < 0.001 |
| Wechsler PIQ | 102.41 | 16.00 | 66–138 | 116.13 | 15.46 | 90–155 | 3.88 ** | < 0.001 |
| Wechsler VIQ | 95.57 | 20.92 | 55–145 | 110.94 | 16.14 | 74–140 | 3.54 ** | < 0.001 |
* = p < 0.05; ** = p < 0.01.Edinburgh Handedness Inventory on a scale from –100 (left-handed) to 100 (right-handed).