Abstract
<jats:p xml:lang="en">This study examined the mediating effects of self-reflection and insight which are two sub-dimensions of private self-consciousness, in the relationship between differentiation of self and PERMA model of well-being. A total of 410 university students (321 female and 89 male) with a mean age of 21. 51 (SD = 2.28) participated in the study. The relationships between insight, differentiation of self, and well-being were positive and significant. The findings revealed that individuals with higher levels of differentiation and insight had higher levels of well-being. Furthermore, highly differentiated individuals were also found to have higher levels of insight. It was seen that insight significantly and positively mediated the relationship between differentiation of self and well-being. That is, differentiation of self also has an indirect effect with well-being through insight. The study findings also indicated that self-reflection was not significantly correlated with differentiation of self, therefore mediating model based on self-reflection could not be tested. Self-reflection and psychological well-being were significantly and positively related. The findings indicated that interventions that support both the differentiation of the self and the insight levels of individuals in clinical and counseling processes would contribute to increasing their well-being levels.</jats:p>