Abstract
The aim of this study was to describe the prevalence of bullying and cyberbullying perpetration among adolescents and to test the role of demographic (gender, age) and psychosocial variables (self-esteem, loneliness and school climate) associated with these aggressive behaviours. An anonymous questionnaire was fi lled in by 2.326 adolescents from Italian middle and high schools. Results showed that cyberbullying appeared to be less frequent as compared with traditional forms of bullying. Logistic regression analyses revealed a strong continuity between traditional bullying and cyberbullying. Loneliness perceived in the relationships with parents was a very relevant predictor of both forms of bullying (traditional and cyber): i.e. the adolescents who perceived parents as distant were more involved in bullying. A negative relationship with teachers and a low self-esteem about school were other signifi cant risk factors for traditional and cyber perpetration. Besides these common predictors, some differences were found among predictors in traditional bullying and cyberbullying. In fact, males and students of high schools declared to be more involved in the role of a traditional bully than female and younger preadolescents, while gender and age had no predictive role for cyberbullying. A high perception of self-esteem in relationships with peers, a low aversion to loneliness and a perception of unsafety at school triggered cyberbullying, while a high perception of self-esteem in sports activities and of a poor support at school increased the probability of becoming a traditional bully. The results have been discussed focussing on the family and school contexts as crucial relational environments to be considered for intervention programs aimed at preventing not only traditional bullying but also forms of aggression in the virtual world.