Table 1.
Sample Characteristics
| M ± SD | |
|---|---|
| Age | 15.01 ± 1.09 |
| Estimated IQa | 103.61 ± 12.12 |
|
N (%) |
|
| Sex | |
| Male | 55 (68.8%) |
| Female | 25 (31.3%) |
| Race/Ethnicity | |
| White | 63 (78.8%) |
| Black | 8 (10.0%) |
| Hispanic | 1 (1.3%) |
| Multiracial | 8 (10.0%) |
| Stimulant medication use | 29 (35.8%) |
| Family Incomeb | |
| Up to $20,000 | 3 (3.8%) |
| $20,001 - $40,000 | 8 (10.0%) |
| $40,001 - $60,000 | 12 (15.0%) |
| $60,001 - $80,000 | 9 (11.3%) |
| Over $80,000 | 47 (58.8%) |
Note. N = 80.
a
Estimated intelligence quotient (IQ) determined using the Kaufman Brief Intelligence Scale, Second Edition (KBIT-2).
b
One parent declined to answer the family income question.