Table 1.
Means and t-tests comparing ASD participants with “controls” on cognitive measures.
| Measure (upper/lower limits) | ASD (N = 15) mean (SD) | Control mean (SD) (Sample) | t-value (p)* |
|---|---|---|---|
| Numeracy (0–8) | 5.20 (1.97) | 4.88 (1.64) (N = 211) | 0.72 (0.472) |
| Applying decision rules (0–7) | 5.06 (1.49) | 4.41 (1.68) (N = 211) | 1.46 (0.146) |
| Attribute framing effect (–5 to 5) | 0.46 (0.46) | 0.33 (0.75) (N = 131) | 0.96(0.348) |
| Risky choice framing effect (–5 to 5) | 0.33 (1.29) | 0.80 (2.10) (N = 131) | –1.24 (0.229) |
| Rational ability (0–10) | 3.70 (0.80) | 3.79 (0.54) (N = 80) | –0.42 (0.681) |
| Rational engagement (0–10) | 3.78 (0.83) | 3.51 (0.62) (N = 80) | 1.46 (0.147) |
| Experiential ability (0–10) | 2.80 (0.85) | 3.43 (0.51) (N = 80) | –2.78 (0.014) |
| Experiential engagement (0–10) | 2.94 (0.62) | 3.43 (0.52) (N = 80) | –3.25 (0.002) |
| Cups task: risk taking on gain trials | 12.60 (5.38) | 16.95 (6.77) (N = 358) | –2.46 (0.01) |
| Cups task: risk taking on loss trials | 14.33 (7.02) | 18.08 (5.93) (N = 358) | –2.38 (0.02) |
| Cups task: RA-RD on gain trials | 1.33 (3.46) | 2.59 (2.89) (N = 358) | –1.64 (0.10) |
| Cups task: RA-RD on loss trials | 2.00 (2.53) | 1.67 (2.91) (N = 358) | 0.43 (0.666) |
*t-tests were adjusted for unequal variance where appropriate.