Table 1.
Descriptive Information by Study.
| Variable | Study 1 | Study 2 | Study 3 | Study 4 |
|---|---|---|---|---|
| n | 228 | 70 | 98 | 130 |
| Residential area | Metropolitan | Suburban and metropolitan | Suburban and metropolitan | Suburban and rural |
| % ADHD | 57 | 100 | 100 | 49 |
| Age, M (SD) | 7.35 (1.10) | 8.06 (1.16) | 8.76 (2.06) | 8.22 (1.22) |
| Sex (% male) | 71 | 71 | 67 | 67 |
| Race/ethnicity (%) | ||||
| White | 46 | 36 | 49 | 85 |
| Black | 5 | 41 | 31 | 5 |
| Hispanic | 11 | 4 | 0 | 1 |
| Mixed | 26 | 7 | 0 | 7 |
| Other, refused | 12 | 12 | 20 | 2 |
| Comorbidity (%) | ||||
| ODD | 27 | 48 | 41 | 15 |
| CD | 1 | 20 | 26 | 0 |
Note. N = 526; Study 1 = Li & Lee, 2012a; Study 2 and 3 = Chronis-Tuscano et al., 2008; Study 4 = Mikami, Jack, Emeh, & Stephens, 2010; ADHD = attention-deficit/hyperactivity disorder; ODD = oppositional defiant disorder; CD = conduct disorder.