RT Article T1 Hanging Out with the Wrong Crowd? The Role of Unstructured Socializing in Adolescents’ Specialization in Delinquency and Substance Use JF Journal of quantitative criminology VO 37 IS 1 SP 141 OP 177 A1 Hoeben, Evelien A1 Siennick, Sonja E. A1 Osgood, D. Wayne A1 Weerman, Frank M. A2 Siennick, Sonja E. A2 Osgood, D. Wayne A2 Weerman, Frank M. LA English YR 2021 UL https://krimdok.uni-tuebingen.de/Record/1760898295 AB Despite abundant attention to offending specialization in criminology, scholars have only recently started to explore opportunity-driven explanations for within-individual patterns of specialization. The current study examines whether unstructured socializing with specific friends can explain within-individual changes in adolescents’ degree of specialization in delinquency and substance use. K1 Delinquency versatility K1 Poly-substance use K1 Unstructured socializing K1 Peer influence K1 Adolescence DO 10.1007/s10940-019-09447-4