Table 2.
Scores on the WISC-IV
| ASD (N=17) |
TD (N=18) |
p-value | |||
|---|---|---|---|---|---|
| Mean | SD | Mean | SD | ||
| FSIQ | 105.12 | 13.24 | 109.94 | 12.77 | 0.280 |
| VCI | 103.12 | 16.44 | 109.56 | 12.48 | 0.199 |
| PRI | 109.35 | 11.20 | 108.39 | 12.45 | 0.812 |
| WMI | 106.71 | 14.86 | 103.72 | 12.23 | 0.520 |
| PSI | 94.18 | 17.44 | 105.94 | 17.23 | 0.053 |
| VCI | |||||
| Similarities | 11.65 | 2.78 | 11.56 | 2.64 | 0.921 |
| Vocabulary | 10.24 | 3.31 | 11.56 | 2.94 | 0.220 |
| Comprehension | 10.00 | 3.55 | 12.17 | 2.66 | 0.048* |
| Information | 11.24 | 3.21 | 10.50 | 2.23 | 0.435 |
| Word reasoning | 10.82 | 2.07 | 11.83 | 2.48 | 0.201 |
| PRI | |||||
| Block design | 11.71 | 2.28 | 12.17 | 2.85 | 0.603 |
| Picture concepts | 10.76 | 2.36 | 10.67 | 2.61 | 0.908 |
| Matrix reasoning | 11.82 | 3.19 | 11.00 | 2.93 | 0.432 |
| Picture completion | 11.65 | 2.80 | 10.50 | 2.71 | 0.227 |
| WMI | |||||
| Digit span | 10.59 | 2.98 | 11.17 | 2.18 | 0.515 |
| Letter-number Sequencing | 11.71 | 3.02 | 10.11 | 3.66 | 0.170 |
| Arithmetic | 10.12 | 2.85 | 11.61 | 2.81 | 0.128 |
| PSI | |||||
| Coding | 8.59 | 4.32 | 11.39 | 3.43 | 0.041* |
| Symbol search | 9.53 | 2.76 | 11.11 | 3.34 | 0.138 |
| Cancellation | 7.71 | 3.41 | 11.39 | 3.36 | 0.003** |
*
p<0.05,
**
p<0.01, significance level.
WISC-IV: Wechsler Intelligence Scale for Children-Fourth Edition, ASD: autism spectrum disorder, TD: typically developing, SD: standard deviation, FSIQ: Full-Scale Intelligence Quotient, VCI: Verbal Comprehension Index, PRI: Perceptual Reasoning Index, WMI: Working Memory Index, PSI: Processing Speed Index