The objective of the present study was to analyze the extent to which violent peer behavior and victimization, both traditional and cybernetic, and predict certain indicators of psychological maladjustment in adolescents, such as self-concept, satisfaction with life, feeling of loneliness, depressive symptomatology, perceived stress, social anxiety, empathy, and emotional intelligence. Participants in the study were 1318 adolescents of both sexes, aged between 11 and 18 years and enrolled in Compulsory Secondary Education schools. The design of the study was cross-sectional. The results indicated that the victims generally present greater maladjustment than the aggressors. Both victims and cybervictims showed a greater decrease in all the dimensions of self-concept, compared with aggressors and cyberaggressors. However, the two types of aggressors showed a higher likelihood of presenting low levels of empathy. Feeling of loneliness, depressive symptomatology, perceived stress, and degree of life satisfaction was more probable to be present in all groups of aggressors and victims. Finally, with regard to emotional intelligence, victims had a higher probability of obtaining low scores in all the dimensions of this construct; this was the case for traditional aggressors only in the dimension of emotion regulation. These results contribute to our understanding of the consequences of harassment in the adaptation of the students involved, with relevant practical implications.