The study aims to determine how the variables of gender, grade level, playing violent computer games, watching violent movies, and participation and social activities contribute to predicting peer pressure levels among adolescents. It was conducted with 212 adolescents (secondary school students). The "Peer Pressure Scale" and a "Personal Information Form" were employed to obtain data. The collected data were analyzed by multiple regression analysis. The results of the study showed that grade level, playing violent computer games, watching violent movies, and participation and social activities are significant predictors of peer pressure levels among adolescents. However, gender was not found to be a significant predictor. (C) 2015 Published by Elsevier Ltd.