Table 1.
Final sample characteristics.
| Measure | ASD | TD | Statistic | p |
|---|---|---|---|---|
| N | 31 | 33 | — | — |
| Gender (M:F), n | 18:13 | 17:16 | χ2 = 0.277 | 0.599 |
| Age (year) | ||||
| Mean (SD) | 15.55 (1.76) | 15.65 (1.88) | t(62) = 0.209 | 0.835 |
| Min–max | 12.18–18.98 | 12.26–18.60 | — | — |
| Handedness, mean (SD) | 36.10 (8.32) | 34.76 (8.16) | t(61) = −0.646 | 0.521 |
| Wechsler Intelligence Scales, mean (SD) | ||||
| Picture completion | 10.19 (1.618) | 10.67 (2.245) | t(58) = 0.933 | 0.355 |
| Block design | 10.43 (3.213) | 12.58 (2.424) | t(53.740) = 2.965 | 0.005 |
| Vocabulary | 10.90 (2.708) | 11.79 (2.355) | t(61) = 1.392 | 0.169 |
| Similarities | 11.47 (3.360) | 12.85 (2.563) | t(61) = 1.845 | 0.070 |
| Performance IQ | 100.74 (10.714) | 110.21 (10.703) | t(62) = 3.536 | 0.001 |
| Verbal IQ | 107.35 (14.520) | 113.24 (11.822) | t(62) = 1.784 | 0.079 |
| Total IQ | 104.06 (11.685) | 112.00 (11.037) | t(62) = 2.794 | 0.007 |
| Adolescent/Adult Sensory Profile, mean (SD) | ||||
| Low registration | 34.50 (10.514) | 28.42 (5.292) | t(41.882) = −2.854 | 0.007 |
| Sensation seeking | 35.77 (6.296) | 45.48 (8.526) | t(61) = 5.104 | <0.001 |
| Sensory sensitivity | 40.73 (12.123) | 30.91 (6.844) | t(44.828) = −3.909 | <0.001 |
| Sensation avoiding | 41.20 (11.631) | 28.91 (6.779) | t(45.728) = −5.059 | <0.001 |
| AASP sum (seeking reverse scored) | 155.67 (32.662) | 117.76 (13.365) | t(37.709) = −5.922 | <0.001 |
| Autism Diagnostic Interview, Revised (ASD only) | ||||
| Social interaction | ||||
| Mean (SD) | 18.07 (8.40) | — | ||
| Min–max | 6–37 | — | ||
| Communication and language | ||||
| Mean (SD) | 14.16 (4.31) | — | ||
| Min–max | 4–21 | — | ||
| Restricted and repetitive behaviors | ||||
| Mean (SD) | 4.13 (3.54) | — | ||
| Min–max | 0–17 | — | ||
| Child Behavior Checklist DSM-oriented scales (TD only) | ||||
| Affective problems | ||||
| Mean (SD) | — | 1.667 (1.689) | ||
| Min–max | — | 0–6 | ||
| Anxiety problems | ||||
| Mean (SD) | — | 1.000 (1.199) | ||
| Min–max | — | 0–4 | ||
| Somatic problems | ||||
| Mean (SD) | — | 0.424 (0.867) | ||
| Min–max | — | 0–4 | ||
| Attention deficit hyperactivity problems | ||||
| Mean (SD) | — | 1.667 (2.041) | ||
| Min–max | — | 0–7 | ||
| Oppositional defiant problems | ||||
| Mean (SD) | — | 1.394 (1.499) | ||
| Min–max | — | 0–6 | ||
| Conduct problems | ||||
| Mean (SD) | — | 0.606 (0.998) | ||
| Min–max | — | 0–4 | ||