TY - JOUR A1 - Krahé, Barbara T1 - Risk cactors for the development of aggressive behavior from middle childhood to adolescence BT - the interaction of person and environment JF - Current directions in psychological science N2 - In this article, I examine the development of aggressive behavior from middle childhood to adolescence as a result of the interaction between the person and the environment and discuss implications for intervention measures. Three main questions are addressed and illustrated by examples from recent research: What are intrapersonal risk factors for the development and persistence of aggressive behavior from middle childhood to adolescence? What factors in the social environment contribute to the development of aggressive behavior? How do individual dispositions and environmental risk factors interact to explain developmental trajectories of aggressive behavior? KW - aggression KW - development KW - anger regulation KW - contagion KW - media violence KW - peer influences Y1 - 2020 U6 - https://doi.org/10.1177/0963721420917721 SN - 0963-7214 SN - 1467-8721 VL - 29 IS - 4 SP - 333 EP - 339 PB - Sage CY - Thousand Oaks ER - TY - JOUR A1 - Busching, Robert A1 - Krahé, Barbara T1 - The contagious effect of deviant behavior in adolescence BT - a longitudinal multilevel study JF - Social psychological and personality science N2 - This article investigated how the development of deviant behavior in adolescence is influenced by the variability of deviant behavior in the peer group. Based on the social information-processing (SIP) model, we predicted that peer groups with a low variability of deviant behavior (providing normative information that is easy to process) should have a main effect on the development of adolescents’ deviant behavior over time, whereas peer groups in which deviant behavior is more variable (i.e., more difficult to process) should primarily impact the deviant behavior of initially nondeviant classroom members. These hypotheses were largely supported in a multilevel analysis using self-reports of deviant behavior in a sample of 16,891 adolescents in 1,308 classes assessed at two data waves about 1-year apart. The results demonstrate the advantages of studying cross-level interactions to clarify the impact of the peer environment on the development of deviant behavior in adolescence. KW - multilevel analyses KW - peer influences KW - deviant behavior KW - gender KW - adolescence Y1 - 2017 U6 - https://doi.org/10.1177/1948550617725151 SN - 1948-5506 SN - 1948-5514 VL - 9 IS - 7 SP - 815 EP - 824 PB - Sage Publ. CY - Thousand Oaks ER -