Adolescents Who Self-Harm: The Patterns in Their Interpersonal and Psychosocial Difficulties.

We proposed that having mutually hostile interactions with others is a strong environmental stress factor that, together with diverse psychosocial problems, characterizes adolescents who self-harm. Using cluster analysis, this study examined the naturally occurring patterns of hostility conditions and psychosocial difficulties in a normative sample of 2,029 adolescents (50% boys; Mage  = 13.89). Results showed that self-harming behavior was significantly higher among the subgroup of adolescents with mutually hostile interactions who exhibited both internalizing and externalizing problems than among adolescents with other interpersonal-psychosocial configurations. Also, this subgroup of adolescents reported high impulsivity, anger dysregulation, and low self-esteem. These findings support recent research that indicates that adolescents who self-harm also tend to expose others to hostility and display externalizing symptoms.