Resumen: Adolescents´ social relationships evolve rapidly, and that evolution is not exempt from difficulties and challenges. Therefore it is essential to know which factors influence social relationships in order to pinpoint those factors that put adolescents at risk, and to design strategies of prevention and intervention against school violence. This study evaluated 5,028 secondary education students aged 12-16 years old. A correlation was made among the variables of age, gender, school coexistence, and direct/indirect bullying of both the bully and the victim. In turn, a multiple regression analysis was performed to predict direct and/or indirect bullying on the part of the perpetrator and/or the victim. The results revealed the existence of significant relationships among those variables. We discuss these relationships and provide an intervention proposal to prevent aggressive behavior at schools. Several future research lines can be drawn. Idioma: Inglés DOI: 10.11144/Javeriana.upsy21.sfap Año: 2022 Publicado en: Universitas Psychologica 21 (2022), [14 pp.] ISSN: 1657-9267 Factor impacto JCR: 0.3 (2022) Categ. JCR: PSYCHOLOGY, MULTIDISCIPLINARY rank: 144 / 147 = 0.98 (2022) - Q4 - T3 Factor impacto CITESCORE: 1.1 - Psychology (Q4)