| Total sample ( N  = 80) | ASD group | TD group | t (78) |
---|---|---|---|---|
 | Mean (SD) range | Mean (SD) range | Mean (SD) range |  |
Child measures: age (months) | 58.47 (13.93) 29 to 82 | 63.38 (12.35) 36 to 82 | 53.56 (13.83)29 to 78 | 3.31* |
Verbal reasoning | 14.83 (5.13) 1 to 43 | 14.15 (4.08) 7 to 21 | 15.51 (5.98) 1 to 43 | 1.17 |
Abstract/visual reasoning | 13.36 (10.27) 1 to 80 | 12.67 (6.66) 3 to 27 | 14.05 (12.98) 1 to 54 | 0.59 |
Quantitative reasoning | 11.35 (7.27) 1 to 54 | 11.15 (5.59) 1 to 20 | 11.54 (8.7) 1 to 80 | 0.23 |
Short-term memory | 12.49 (6.26) 1 to 42 | 13.18 (4.86) 4 to 22 | 11.79 (7.58) 1 to 42 | 0.96 |
ADOS-2 | Â | 11.89 (3.23) 7 to 22 | N/S | Â |
Demographic (years) | Â | Â | Â | Â |
 Mother age | 36.88 (4.45) 27 to 47 | 37.6 (4.45) 30 to 47 | 36.14 (4.39) 27 to 44 | 1.37 |
 Father age | 39.49 (5.14) 28 to 53 | 40.34 (5.33) 31 to 53 | 38.6 (4.86) 28 to 52 | 1.12 |
 Mother education | 16.26 (2.38) 12 to 25 | 15.94 (2.47) 12 to 22 | 16.59 (2.28) 12 to 25 | 1.42 |
 Father education | 16.39 (3.34) 12 to 28 | 15.97 (3.71) 12 to 25 | 16.87 (2.85) 12 to 28 | 1.11 |