RT Article T1 Modeling the Reciprocal Relationships Between Group-Based Developmental Trajectories of Peer Delinquency and Self-Reported Delinquency During Adolescence: An Application of Interactional Theory JF Criminal justice and behavior VO 48 IS 2 SP 234 OP 255 A1 Cho, Sujung LA English YR 2021 UL https://krimdok.uni-tuebingen.de/Record/1776257553 AB This study examines whether one’s own delinquency and peer delinquency are reciprocally related and how prior delinquency and bonding variables influence peer delinquency trajectories. Using data from a 6-year follow-up study of 2,351 Korean adolescents, the study incorporates a group-based model to identify subgroups, each having a unique pattern of peer delinquency trajectories. The models yielded three subgroups: the early-onset and declining, the late-onset, and the nonoffending groups. The results reveal that compared with the nonoffending group, prior delinquency was significant for both the early-onset and decreasing and late-onset groups. Membership in the early-onset and decreasing group was associated with a greater likelihood of prior delinquency compared with the late-onset group. Commitment to school rule differentiated the early-onset and decreasing group from the nonoffending group, and partially mediated the effect of prior delinquency. The late-onset group members reported the highest probability of later delinquent behavior among the three groups. K1 Bonding variables K1 Delinquency K1 Developmental trajectories K1 Group-based model K1 Peer delinquency DO 10.1177/0093854820964237