Table 2.
Neuropsychological profile of participants with ADHD and typically developing youth (TD).
| ADHD boys | ADHD girls | TD boys | TD girls | F-value | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| ACT | Mean | SD | Mean | SD | Mean | SD | Mean | SD | F: group | F: sex | F: (G) × (S) |
| Total | 32.13 | 11.2 | 44.50 | 8.4 | 48.44 | 8.3 | 48.50 | 15.9 | 5.35∗∗ | 2.00 | 1.86 |
|
| |||||||||||
| CPT | |||||||||||
| Omission | 58.11 | 9.8 | 47.18 | 3.7 | 45.68 | 7.3 | 49.07 | 11.3 | 3.05 | 1.56 | 5.63∗ |
| Commission | 53.54 | 5.4 | 56.78 | 6.3 | 46.58 | 21 | 59.96 | 18.5 | 0.16 | 3.10 | 1.16 |
| Hit RT | 58.42 | 12.3 | 40.42 | 5.2 | 48.89 | 6.9 | 48.21 | 13.5 | 0.06 | 6.65∗ | 5.73∗ |
| Hit RT SE | 61.46 | 10.5 | 49.42 | 11.1 | 47.10 | 7.8 | 49.56 | 12.1 | 4.21∗ | 1.91 | 4.37∗ |
| Hit RT ISI | 62.83 | 16.1 | 51.24 | 9.5 | 53.18 | 12.6 | 52.05 | 12.7 | 0.97 | 2.01 | 1.36 |
| Hit SE ISI | 59.48 | 11.7 | 55.24 | 11.5 | 45.09 | 9.5 | 49.67 | 8.8 | 8.51∗∗ | 0.00 | 1.69 |
| Hit RT Block | 60.45 | 11.3 | 48.2 | 13.4 | 50.07 | 13.6 | 48.77 | 11.9 | 0.47 | 5.96∗ | 4.38∗ |
| Hit SE Block | 59.08 | 7.9 | 40.95 | 11.3 | 48.88 | 11.7 | 49.11 | 7.53 | 0.12 | 9.46∗ | 9.96∗ |
Note. ACT, Auditory Consonant Trigrams test; CPT, Continuous Performance Task; omission, number of times the subject fails to respond when target was presented; commission, number of response in absence of target; Hit RT, overall reaction time; Hit RT Block, slope of change in RTs over the six time blocks; Hit SE Block, slope of change in RTs standard errors over the six time blocks; Hit RT ISI, slope of change in RTs over the three interstimulus intervals; Hit SE ISI, slope of change in RTs SE over the three ISI; F: group corresponds to the Fisher test comparing youth with ADHD to youth without; F: sex corresponds to the Fisher test comparing boys to girls and F(G × S) corresponds to the Fisher measure observed for the interaction between the group and the sex.
∗ p < 0.05; ∗∗ p < 0.01; all ps are two-tailed.