Objective: Measures of drug use, law-abidance beliefs, sensation seeking, f
ear of victimization, high-risk group identification, self- protection need
s and behaviors, and demographics were investigated as longitudinal predict
ors of violence perpetration among 870 high-risk adolescents. Method: Self-
reports from the same youth were obtained 1-year apart. Results: In additio
n to baseline violence perpetration, marijuana use, relatively young age, m
ale sex, high-risk group self-identification, low perceived efficacy of the
police department, and nonavoidance of dangerous places predicted later pe
rpetrated violence. Conclusion: Personal and social factors beyond baseline
violent behavior predict risk for future violent behavior.