Table 2.
Demographic Information
| Control | ADHD | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Boys
(n = 35) |
Girls
(n = 34) |
Total
(n = 69) |
Boys
(n = 32) |
Girls
(n = 22) |
Total
(n = 54) |
|||||||
| Mean | SD | Mean | SD | Mean | SD | Mean | SD | Mean | SD | Mean | SD | |
| Age* | 11.1 | 1.7 | 11.0 | 2.2 | 11.0 | 1.9 | 12.4 | 2.1 | 11.0 | 2.1 | 11.8 | 2.2 |
| SES | 51.5 | 11.2 | 54.7 | 8.4 | 53.1 | 9.9 | 54.8 | 10.8 | 55.2 | 7.8 | 54.9 | 9.6 |
| FSIQ** | 115.9 | 12.4 | 114.9 | 10.3 | 115.4 | 11.3 | 107.8 | 13.5 | 110.8 | 14.1 | 109.0 | 13.7 |
| Age 8–10 yrs. | n = 19 | n = 16 | n = 35 | n = 8 | n = 12 | n = 20 | ||||||
| Age 11–13 yrs. | n = 15 | n = 16 | n = 31 | n = 17 | n = 7 | n = 24 | ||||||
| Age 14–15 yrs. | n = 1 | n = 2 | n = 3 | n = 7 | n = 3 | n = 10 | ||||||
| Caucasian | n = 25 | n = 26 | n = 51 | n = 27 | n = 16 | n = 43 | ||||||
| African American | n = 5 | n = 4 | n = 9 | n = 3 | n = 2 | n = 5 | ||||||
| Hispanic | n = 1 | n = 0 | n = 1 | n = 0 | n = 1 | n = 1 | ||||||
| Asian | n = 1 | n = 0 | n = 1 | n = 1 | n = 1 | n = 1 | ||||||
| Other | n = 3 | n = 2 | n = 5 | n = 0 | n = 1 | n = 1 | ||||||
Note. ADHD = Attention Deficit Hyperactivity Disorder; TD = Typically developing; SES = Hollingshead Index; SES data not available for 5 participants in the TD group and 6 in the ADHD group;
*
TD < ADHD, p < .05;
**
TD > ADHD, p = .01.