RT Article T1 Mediated and moderated effects of violent media consumption on youth violence JF European journal of criminology VO 13 IS 2 SP 149 OP 168 A1 Kanz, Kristina-Maria 1980- LA English YR 2016 UL https://krimdok.uni-tuebingen.de/Record/1647378656 K1 Media violence K1 Mediator effects K1 Moderator effects K1 Panel study K1 Youth violence