| Problematic Substance Use Group | Control Group |  | ||
---|---|---|---|---|---|
 | Total | Total | F | ||
YSR/YASR Secondary Scales | Mean | SD | Mean | SD | (df = 1) |
Time 1 | (N = 30) | (N = 563) | Â | ||
Internalizing | 10.82 | 6.34 | 9.05 | 6.27 | 2.47 |
Externalizing | 15.24 | 5.96 | 9.58 | 5.73 | 32.13*** |
Time 2 | (N = 155) | (N = 438) | Â | ||
Internalizing | 11.40 | 7.91 | 9.89 | 7.24 | 4.82* |
Externalizing | 13.68 | 6.23 | 8.84 | 5.12 | 99.59*** |
Time 3 | (N = 290) | (N = 303) | Â | ||
Internalizing | 8.59 | 6.55 | 8.39 | 6.72 | 0.23 |
Externalizing | 8.52 | 5.60 | 5.23 | 3.87 | 61.46*** |