Youth and violence 135 Social conditions 33 Youth 29 Prevention 24 Juvenile delinquency 17 Violence in adolescence 17 Gangs 14 更多 ... Violence 14 Children and violence 12 Juvenile delinquents 10 Social aspects 10 Violencia 9 Psychological aspects 8 Rehabilitation 7 Gang members 6 Jovenes y violencia 6 Psychology 6 Violence in mass media 6 Aggressiveness in adolescence 5 Race relations 5 School shootings 5 School violence 5 African American young men 4 African American youth 4 Aggressiveness in children 4 Children 4 Developmental psychology 4 History 4 Masculinity 4 Political violence 4 少 ...