Proactive and reactive aggression in delinquent adolescents: relations to aggression outcome expectancies.

Investigated whether the relation between aggression and the tendency to expect positive outcomes for aggressive behavior is specific to the proactive subtype of aggression (as opposed to the reactive subtype). In a sample of 86 incarcerated adolescent boys ages 13 to 18, we measured outcome expectancies for aggression using audiotaped hypothetical vignettes. For each participant, staff members completed proactive and reactive aggression rating scales. Regression analyses revealed that the relation between aggression and outcome expectancies was indeed specific to proactive aggression. Furthermore, this finding was supported regardless of whether outcome expectancies were assessed using vignettes describing proactive-aggressive behavior or those describing reactive-aggressive behavior. We discuss these findings and argue that interventions to reduce proactive or reactive aggression should differ from each other by addressing the specific social cognitive processes involved in each type of aggression.