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Group characteristics
| Variable | ADHD (N = 19) | CG (N = 19) | t |
|---|---|---|---|
| Age (years) | 13.32 | 13.58 | 0.52 |
| Diagnoses: | |||
| ADHD—combined | 13 | — | |
| ADHD—inattentive | 6 | — | |
| Oppositional defiant disorder | 2 | — | |
| IQ (CFT) | 104.89 | 108.63 | 0.96 |
| Attentional performance (d2; PR)* | 55.23 | 77.79 | 2.5 |
| Attentional problems—self rating (YSR; T)** | 53.48 | 60.5 | −3.52 |
| Attentional problems—parental rating (CBCL; T)*** | 54.26 | 68.06 | −9.28 |
*P < 0.05, **P < 0.01, ***P < 0.001.
