Table 1. Overall accuracy and response confidence on the first item in two age groups.
| Base-rate task | Conjunction fallacy task | ||||||||
| Young adolescents | Late Adolescents | Young adolescents | Late Adolescents | ||||||
| Measure | Problem | Mean (SE) | n | Mean (SE) | n | Mean (SE) | n | Mean (SE) | n |
| Accuracy | Conflict | 7 (2.5) | 109 | 16 (2.3) | 126 | 11 (2.8) | 109 | 18 (2.7) | 126 |
| No-conflict | 97 (1.3) | 109 | 95 (1.2) | 126 | 92 (1.6) | 109 | 96(1.5) | 126 | |
| Confidence | Conflict incorrect | 83 (4.2) | 21 | 67 (4.0) | 22 | 66 (3.7) | 27 | 63 (3.5) | 30 |
| No-conflict | 82 (3.8) | 25 | 82 (3.6) | 28 | 73 (3.9) | 30 | 75 (3.8) | 35 | |
| Conflict correct | 59 (11.4) | 4 | 73 (9.3) | 6 | 55 (16.1) | 2 | 46 (10.2) | 5 | |