School violence Prevention 2 Psychological aspects 2 Adolescent psychiatry 1 Bullying 1 Bullying in schools 1 Child psychiatry 1 Columbine High School (Littleton, Colo.) 1 Conflict management 1 Escuelas 1 Gender-based violence 1 School environment 1 School shootings 1 Theory & Practice of Education 1 Violencia 1 Youth and violence 1 aggression 1 offender's profile 1 prevention 1 risk evaluation 1 risk potential 1