Table 3.
Sample Characteristics
| Control group |
ADHD group |
|||
|---|---|---|---|---|
| Variable | M | SD | M | SD |
| Age (years) | 19.93 | 5.37 | 18.31 | 4.53 |
| Sex | ||||
| % Male | 43.4 | 71.3 | ||
| % Female | 56.6 | 28.7 | ||
| Estimated full scale IQ | 112.99 | 12.84 | 106.94 | 12.60 |
| Reading standard score | 105.03 | 9.08 | 100.87 | 10.92 |
| Education | 12.91 | 2.61 | 11.60 | 2.00 |
| Ethnicity | ||||
| % White | 78.0 | 80.0 | ||
| % African American | 10.0 | 7.0 | ||
| % Latino | 2.0 | 6.0 | ||
| % Asian/Asian American | 2.0 | 1.0 | ||
| Other/mixed/unreported | 8.0 | 6.0 | ||
| Corners Index T score | 45.18 | 7.81 | 65.45 | 11.49 |
Note. For control group, n = 173; for ADHD group, n = 115. Conners Index T score is self-reported for adults and is the average of mother and teacher ratings for adolescents. The ADHD group consisted of 60 primarily inattentive subtype participants and 55 combined subtype participants.