Psychopathology and Sibling Violence in a Sample of Portuguese Adolescents.

Sibling violence appears to affect the psychological well-being of adolescents, making them susceptible to the development of psychopathological symptomatology. In a sample of 463 Portuguese adolescents with siblings, we intended to ascertain to what extent psychopathological symptomatology varies depending on age and gender; and to analyze whether the tactics of conflict resolution exert a predictor effect on psychopathological symptomatology. The results of the current study showed that females and older adolescents (17-20 years old) seem to be the most vulnerable to psychopathological symptomatology development.