Predicting Students’ Academic Achievement based on Attachment Styles, Self-Differentiation and Health Promotion Lifestyle

The purpose of this study was to predict the Academic Achievement of Students based on Adult Attachment Styles, Self-Differentiation and Health Promotion Lifestyle in Undergraduate Students of Shahid Behshti University in the Academic Year of 2016-2017. In this descriptive-correlational study, a sample of 305 students from all undergraduate students of Shahid Beheshti University were selected by Accessible Sampling Method. Participants in the study, completed the Adults Attachment Styles Questionnaire (Hazan and Shaver, 1993), Self-Differentiation Revised Questionnaire (Skowron and Smith, 2003) and the profile of Health Promotion Lifestyle (revised version ll) (Walker, Sechrist and Pender, 1995). The results of Stepwise Regression Analysis showed that among the predictor variables, the total score of SelfDifferentiation plays the most role in predicting the academic achievement of the students and after that, are Secure Attachment Style and Self-Actualization component. In total, these three variables predict of about 0/19.4 of the variance of Academic Achievement. The Findings of this study indicate the importance of the initial experiences of people in the family environment and the quality of mother-child relationship and healthy growth of childhood on adulthood function