RT Article T1 A life-course approach to understanding differential relevance of deviant peers for predicting cocaine/crack use JF Crime & delinquency VO 67 IS 12 SP 2114 OP 2134 A1 Wojciechowski, Thomas W. LA English YR 2021 UL https://krimdok.uni-tuebingen.de/Record/1782120556 AB Deviant peer association has been identified as a risk factor for cocaine/crack use. However, understanding is more limited regarding the stability in the salience of this effect across the life-course. The present study utilized the Pathways to Desistance data to test for variance in the magnitude of the relationship between deviant peer association and cocaine/crack use using mixed effects ordered logistic modeling. Results indicated that cocaine/crack use frequency varied as a quadratic function of time. The interactions between deviant peer association and age variables indicated that the magnitude of this relationship first declined during adolescence, but then increased during early adulthood. Implications are discussed. K1 Cocaine K1 Crack K1 Development K1 Life-course K1 Deviant Peer Association DO 10.1177/0011128720978717