The purpose of this study was to examine the relationships among problem be
haviors during early adolescence. Specifically this investigation examined
the association between drug use and aggression among a sample of inner-cit
y adolescents. Eighth graders (N = 517; 49% boys) attending three New York
City schools completed an anonymous questionnaire. Self-reported aggressive
and unsafe behavior were associated with initiation of drug use (smoking,
drinking alcohol, smoking marijuana). Sex differences were also found for a
ggressive behavior, victimization, and unsafe behavior. The data have impli
cations for prevention because reducing drug use might also decrease aggres
sive and unsafe behavior. Social competence skills training, which has been
found effective in drug use prevention programs, can be expanded to cover
aggressive behavior and engagement in unsafe behavior.