Table 2.
Descriptive statistics and comparisons by child race.
| N | Black Children M (SD) |
White Children M (SD) |
T-test | Hedges’ g | |
|---|---|---|---|---|---|
| Children with ADHD | |||||
| Caregiver IA | 1724 | 6.33 (2.56) | 6.10 (2.58) | 1.68 | .09 |
| Caregiver HI | 1724 | 3.96 (3.01) | 4.04 (2.94) | .52 | .03 |
| Caregiver Conduct | 1711 | 2.72 (2.53) | 2.83 (2.36) | .38 | .05 |
| Teacher IA | 1724 | 5.07 (3.15) | 4.54 (3.07) | 3.38*** | .18 |
| Teacher HI | 1724 | 3.17 (3.14) | 2.60 (2.92) | 3.53*** | .19 |
| Teacher Conduct | 1724 | 1.21 (2.22) | .75 (1.70) | 4.30*** | .25 |
| Children without ADHD | |||||
| Caregiver IA | 2219 | 4.72 (2.98) | 4.56 (3.00) | 1.21 | .06 |
| Caregiver HI | 2219 | 2.55 (2.65) | 2.47 (2.55) | .67 | .03 |
| Caregiver Conduct | 2206 | 2.25 (2.38) | 2.16 (2.24) | .83 | .04 |
| Teacher IA | 2219 | 4.08 (3.13) | 3.19 (3.04) | 6.26*** | .29 |
| Teacher HI | 2219 | 2.14 (2.78) | 1.57 (2.36) | 4.55*** | .23 |
| Teacher Conduct | 2219 | .94 (1.99) | .46 (1.31) | 5.66*** | .31 |
Note.
***
p<.001.
ADHD = Attention-Deficit/Hyperactivity Disorder; IA = inattentive symptoms; HI = hyperactive/impulsive symptoms. Within-informant race-based comparisons were conducted as independent-samples t-tests. Hedges’ g was calculated due to unequal group size.