Mediational Role of Identity Commitment in Relationships Between Identity Processing Style and Psychological Well-Being

The present study evaluated the hypothesis that relationships between identity processing styles and Ryff's (J Pers Soc Psychol 57:1069-1081, 1989) six dimensions of psychological well-being would be mediated by strength of identity commitment. Theoretically predicted relationships were found in a sample of Polish late adolescents (N = 654). The informational identity style was positively associated with five well-being dimensions, the diffuse-avoidant style was negatively associated with all six dimensions, and the normative style was positively associated with self-acceptance, life purpose, and environmental mastery, but negatively associated with autonomy and personal growth. As hypothesized, 14 of these relationships were at least partially mediated by strength of commitment. Identity style and commitment combined accounted for from 18 % (positive interpersonal relations) to 60 % (life purpose) of the variation in the Ryff well-being dimensions (M = 35 %). The pattern of relationships was not moderated by the sex of the participants. The implications of the findings for the role that informed self-exploration and identity commitment may play in psychological well-being are discussed.