Introduction: The aim of this study was to provide a model to explain the relationship between borderline personality traits and
childhood trauma using the mediating role of parenting stress, psychosocial stress and ADHD in students. Materials and Methods:
The present study was a descriptive correlational study. 342 male and female students from Kermanshah University of Medical
Sciences were selected using cluster sampling method. They were asked to fill out the questionnaires of childhood trauma,
borderline personality traits, parenting stress and ADHD and participate in the psychosocial stress test. The collected data was
evaluated via LISREL-8.7 software, structural equation method, AMOS-23, and path analysis. Results: The final results of the
evaluation of the proposed model indicated a good fit of the model. Therefore, the proposed model can provide a good explanation
for mediating role of parenting stress, psychosocial stress and ADHD in predicting relationship between borderline personality
traits and childhood trauma. Conclusion: In addition to proposed model, this study can provide researchers and experts with
important clues about the role of family as well as social and psychological factors in predicting borderline personality traits.
Keywords: Borderline personality, Childhood trauma, Parenting stress,
psychosocial stress, ADHD