The relationship between peers and delinquency has been taken as evidence for selection and socialization effects in the etiology of adolescents. Accumulating evidence suggests that both effects are involved. This study examines whether adolescents’ aggressive propensities and behaviors predict their peers (selection) and whether peers’ propensities and behaviors predict adolescents’ behaviors (socialization). The latent class growth analysis approach revealed three distinct subgroups: an early-onset group (0.9%); a late-peak group (3.37%); and a normative group (95.73%). Both selection and socialization effects were supported using a longitudinal Korean adolescent self-report. The results showed that adolescents with less self-control who are online more frequently and exhibit higher levels of traditional bullying and delinquency were more likely to be members of both the early-onset and late-peak groups compared with the normative group. Also, the aggressive behaviors fully mediated the link between aggressive propensities and delinquent peer associations. Furthermore, adolescents in the late-peak group (but not those in the early-onset group) were associated with a greater likelihood of online and offline delinquency, but cyberbullying and traditional bullying in late adolescence levels were high in both groups’ members.
Agnew introduced a new integrated theory; the General Theory of Crime and Delinquency, in which he attempted to corral the most influential predictors of criminal behavior into more parsimonious propositions of multiple life domains—self, family, peer, school, and work—as well as constraints against crime and motivations for it. This study presents a partial test of the theory using longitudinal data of 2,351 Korean adolescents. A group-based modeling approach (latent class growth analysis) was run to examine direct effects of life domains on peer delinquency as well as mediating effects of constraints and motivation on their relationships. The study identified three subgroups: early onset/decreasing (3.2%), moderate (12.4%), and low/none (84.4%). The findings revealed that the self and peer domains exhibited a positive impact on the early onset/decreasing trajectory group compared to the low/none group with the constraint exhibiting a negative impact. The moderate trajectory group demonstrated that the self-domain was significant but was not rendered insignificant after controlling for constraints and motivations. The study provided moderate support for life domains within Agnew’s new theory for peer delinquency in nonwestern countries.
This study outlines the development of attribution scales to assess the antecedent processes of proactive, reactive, and acquisitive offending. Empirical keying, internal consistency, and item performance were the three test development strategies. Six samples (total N = 1,527) from parole, university, probation, and prison were used. The Proactive scale (10 items) reflected coldness and distance between offender and victims, the Reactive scale (10 items) reflected recklessness and excuses for violent behavior, and the Acquisitive scale (15 items) reflected less negative views of crime and choices. Convergent and discriminant validities were demonstrated by the Proactive scale stronger correlations with planning items, the Reactive scale stronger correlations with affective and person-based items, and the Acquisitive scale stronger correlations with other-based motives. Linking Proactive, Reactive, and Acquisitive scales to an offense provides psychological meaning that can benefit assessment and interventions.
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