Characterization of control and autism populations
| Age (yr) | Edinburgh Handedness Inventory | Verbal IQ (WAIS III or WASI) | Performance IQ (WAIS III or WASI) | CELF-3 | fMRI Laterality Index (L − R)/(L + R) | |
|---|---|---|---|---|---|---|
| Autism mean (n = 26) | 21.7 | 67.7 | 106.0 | 102.8 | 83.6 | 0.23 |
| Autism SD | 6.4 | 38.5 | 22.2 | 16.7 | 27.1 | 0.56 |
| Autism range | 12–35 | −73–100 | 69–139 | 67–135 | 50–125 | −1.0–1.0 |
| Control mean | 22.5 | 78.3 | 121.8 | 116.3 | 114.2 | 0.59 |
| Control SD | 6.3 | 28.7 | 12.7 | 16.4 | 9.4 | 0.33 |
| Control range | 9–32 | 7–100 | 97–140 | 90–155 | 92–122 | −0.11–0.95 |
| P value (2-tailed t-test) | 0.70 | 0.38 | 0.017 | 0.027 | 0.0012 | 0.030 |
Note:—IQ indicates intelligence quotient; CELF-3, Clinical Evaluation of Language Fundamentals, 3rd ed; fMRI, functional MR imaging; R, right; L, left; WAIS, Wechsler Adult Intelligence Scale; WASI, Wechsler Abbreviated Scale of Intelligence.