A series of dropout-control comparisons indicated that the subsample examined here did not significantly differ (i.e., p > 0.05) from those not in the subsample in terms of sex, parental antisocial behavior or alcohol problems, or the number of life events experienced between ages 12–16. However, the subsample did experience fewer life events at age 11 (Cohen’s d = −0.05, indicating a small effect) and had lower scores on the Achenbach Child Behavior Checklist (ages 12, 14, 16, and 17; Cohen’s d ranged from −0.20 to −0.26, indicating small effects) and on the Teacher Report Form (ages 12 and 13; Cohen’s d ranged from −0.53 to −0.54, indicating medium effects) externalizing measures compared to those not in the subsample.
