The Purpose of this research was to study the relationship between predicting of psychological well-being through defense mechanisms and cognitive self-differentiation in students.
The research method was correlation and participants of this research were 125 people of students selected via simple randomization. The research materials were: Skowron and Friddlander Self-differentiation Questionnair, Andrews, Sing and Bond Defense Styles Questionnaire and Ryff Psychological Well-being Questionnaire. .
Multiple regression analysis with stepwise method and Pearson correlation showed that cognitive self-differentiation %8/23, mature defense mechanism %5/53, immature defense mechanism %4/30, neurotic defense mechanism %4/12 and the generally explained %22/18 of common variance (R²) of psychological well-being of students.
The findings of this research indicated that cognitive self-differentiation, mature defense mechanism, immature defense mechanism and neurotic defense mechanism have basic role in psychological well-being of students.