Big Five Personality Clusters in Relation to Nonsuicidal Self-Injury.

Nonsuicidal self-injury (NSSI) is a complex behavior that serves many functions and may be motivated by several factors. Although previously limited to the context of personality disorders, consideration of how general personality traits might be related to NSSI warrants examination. Our aims were to investigate whether clusters based upon the Big Five personality traits exist among people who have engaged in NSSI, and explore systematic differences with regard to gender, age, key indicators of NSSI severity, functions of NSSI, emotional avoidance, alexithymia, psychological distress, and emotion regulation strategies. A sample of 236 university students (83% female, M age = 21.59, SD = 5.43) who had engaged in NSSI completed an anonymous online questionnaire. Cluster analysis yielded three subgroups who were characterized by tendencies for resilience, dysregulation, and disagreeableness. Resilient and dyregulated profiles fell within opposite ends of a continuum with regard to severity of NSSI, psychological distress and alexithymia, and adaptive vs less adaptive emotion regulation strategies. Dysregulated characteristics were also associated with affect regulation and self-punishment functions of NSSI. Disagreeable characteristics were associated with high alexithymia and psychological distress. Implications of these findings for theory and tailored treatment approaches to NSSI are discussed.

Collective Self-Determination: How the Agent of Help Promotes Pride, Well-Being, and Support for Intergroup Helping.

This research integrates self-determination theory and the social identity approach to investigate the notion of collective (group level) self-determination, and to test how the agent of intergroup help (helping initiated by a group representative versus group members) shapes group members' motives and support for intergroup helping. Study 1 ( N = 432) demonstrates that collective self-determination predicts support for intergroup helping, group pride, and well-being, over and above individual-level self-determined motivation. Study 2 ( N = 216) confirmed that helping by group members was seen as more collectively self-determined than helping by a group representative, producing effects on pride, well-being, and support. Study 3 ( N = 124) explores a qualifier of these effects: People who identify more strongly with the leader who is providing the help also experience representative helping as more collectively self-determined, thereby promoting well-being, group pride, and support. Findings highlight the value of integrating self-determination theory with intergroup theories to consider collective aspects of self-determination.