A Structural Model of Marital Commitment Prediction based on Personality Traits by the Mediation of Attachment Styles and Self-differentiation

Abstract Introduction: This study aimed to develop a structural model for marital commitment based on personality traits according to the mediating role of attachment styles and self-differentiation. Method: In a correlational research method, 409 volunteers (204 women and 205 men) were selected by convenience sampling method among the married students of the Islamic Azad University, Science and Research Branch in 2017. They answered to the following questionnaires: Neo-FFI, Adult Attachment Style, self-differentiation and Marital Commitment. Data was analyzed using structural equation modeling by SPSS and LISREL software packages. Results: Findings showed that in overall, a prediction model of marital commitment based on personality traits, attachment styles, and self-differentiation was confirmed and its fit goodness was approved. In regards to the RMSEA index, the fit goodness of the model was approved, as well. Regarding direct ways, all were confirmed except the effect of attachment styles on marital commitment. Besides, regarding indirect ways, the effect of attachment styles on the marital commitment was confirmed through the mediating role of self-differentiation. Conclusion: This study shows that focusing on personality traits, attachment styles, and self-differentiation can cause considerable effects on increasing marital commitment.