Research on proactive and reactive aggression has identified covariates unique to each function of aggression, but hypothesized correlates have often not been tested with consideration of developmental changes in or the overlap between the types of aggression. The present study examines the unique developmental trajectories of proactive and reactive aggression over adolescence and young adulthood and tests these trajectories’ associations with key covariates: callous–unemotional (CU) traits, impulsivity, and internalizing emotions. In a sample of 1,211 justice-involved males (ages 15–22), quadratic growth models (i.e., intercepts, linear slopes, and quadratic slopes) of each type of aggression were regressed onto quadratic growth models of the covariates while controlling for the other type of aggression. After accounting for the level of reactive aggression, the level of proactive aggression was predicted by the level of CU traits. However, change in proactive aggression over time was not related to the change in any covariates. After accounting for proactive aggression, reactive aggression was predicted by impulsivity, both at the initial level and in change over time. Results support that proactive and reactive aggression are unique constructs with separate developmental trajectories and distinct covariates.
Introduction
Poor parental monitoring has been theorized as a key risk factor for an adolescent's association with deviant peers. However, measurements of parental monitoring often only measure parental knowledge rather than parental monitoring actions, leaving the true longitudinal associations between parental monitoring and peer delinquency unclear.
Methods
The current sample consisted of 1095 male justice‐involved adolescents (13–17 years old at baseline collected between 2011 and 2013) from across the United States who provided survey data every 6 months for 3 years. Longitudinal associations between parental monitoring constructs (i.e., parental solicitation and monitoring rules) and peer delinquency were tested using random intercept cross‐lagged panel models to investigate both between‐individual associations and within‐individual bidirectional effects.
Results
Although parental monitoring and peer delinquency were negatively related at a between‐individual level, very few within‐individual directional effects were found. The few within‐individual effects present indicated that parental solicitation predicted greater peer delinquency and peer delinquency predicted fewer parental monitoring rules over time.
Conclusions
Current findings indicate that, while greater overall parental monitoring is associated with less peer delinquency, there is little evidence that changes in parental monitoring lead to reductions in peer delinquency over time. Results support previous findings suggesting parental monitoring should not be the sole target of intervention for reducing peer delinquency.
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