Age, yr, mean (SD) [range] | 27.57 (2.6) [25–35] | 28.95 (4.01) [25–35] | −1.2 | 0.21 |
Sex, male:female, no. (%) of participants | 10 (50) : 10 (50) | 10 (50) : 10 (50) | χ1 (2) = 0.0 | 1.0 |
Weight, kg | 66.52 (10.20) | 72.47 (12.32) | −1.6 | 0.10 |
Height, m | 1.64 (0.08) | 1.67 (0.07) | −1.2 | 0.21 |
Body mass index | 24.42 (2.35) | 25.64 (2.44) | −1.3 | 0.20 |
Right-handed, no (%) of participants | 20 (100) | 20 (100) | — | |
Hispanic, no. (%) of participants | 20 (100) | 20 (100) | — | |
History of school problems, no. (%) of participants† | 1 (5) | 8 (40) | | 0.02§ |
Education, no. (%) of participants‡ |
Junior high school | 0 (0) | 2 (10) | | 0.49§ |
Senior high school | 2 (10) | 4 (20) | | 0.66§ |
College or university | 11 (55) | 8 (40) | | 0.34§ |
Postgraduate | 7 (35) | 6 (30) | | 0.74§ |
Monthly income, no. (%) of participants | | | χ1 (2) = 1.1 | 0.28 |
US$2692–6461 | 16 (80) | 13 (72) | | |
> US$5638 | 4 (20) | 7 (35) | | |
WAIS-III score |
Verbal scale | 102.55 (9.61) | 103.95 (10.05) | −0.4 | 0.65 |
Executive scale | 99.25 (11.46) | 103.55 (10.47) | −1.2 | 0.22 |
Total | 100.15 (11.51) | 102.85 (10.17) | −0.7 | 0.43 |
DSM-IV criteria |
Inattention | 0.40 (0.68) | 7.60 (1.18) | U = 0.0 Z = 5.7 | < 0.001 |
Hyperactivity/impulsivity | 1.30 (1.83) | 6.65 (1.81) | − 9.6 | < 0.001 |
FASCT |
Self-reported score | 10.85 (5.81) | 34.00 (6.67) | −11.8 | < 0.001 |
Observer score | 11.45 (9.43) | 29.10 (8.44) | −6.2 | < 0.001 |