Abstract
The situations of bullying and cyberbullying are, sadly, increasingly present events in the school community, especially favored in the case of cyberbullying, by the boom of social networking taking place in our society. The factors that attempt to explain these peer violence situations have revealed aspects of the individuals involved in them, but we must not forget other variables, such as family type, are crucial at this stage of the life cycle and thus may play also an important role. The aim of this paper is to analyze whether belonging to some of the different family groups existing in our society could be related to the incidence of bullying situations and cyberbullying. Participants were 1684 students from 22 secondary schools (IES and IESO) of the Autonomous Community of Extremadura being 50.9% of the sample women and 49.1% men. The results confirm that there are more victims and aggressors among non-nuclear families (single parent families, blended families, parenting by grandparents,...) than nuclear families, however this relationship was not found among observers.