en روان شناسی تکاملی Evolutionary Psychology پژوهشي Original <div style="text-align: justify;"><span style="color:#3300ff;"><span style="font-size:14px;"><span style="font-family:Times New Roman;"><span style="line-height:2;"><b>Objective</b>: This research explores the intricate dynamics between Type D personality, cognitive appraisal, and mental stress, seeking to unravel the mediating role of cognitive appraisal in the association between Type D personality and mental stress.<br> <b>Methods</b>: A structural equation modeling was conducted, emphasizing the influence of personality traits on mental stress and the potential mitigating impact of cognitive appraisal skills. Data was collected via Type D personality scale, Cognitive reappraisal scale and Mental stress inventory.<br> <b>Results</b>: The study confirmed the positive influence of Type D personality on mental stress while revealing that cognitive appraisal operates as a significant mediator, exerting a moderating effect on the relationship between Type D personality and mental stress. The findings underscore the nuanced interplay between individual personality traits and the cognitive interpretation of stressors, shedding light on how cognitive appraisal could potentially serve as a buffer against the adverse impact of Type D personality on mental stress.<br> <b>Conclusions</b>: These results provide a framework for further research into effective interventions aimed at enhancing cognitive appraisal skills to alleviate mental stress, particularly in individuals with Type D personalities, fostering the development of targeted mental health strategies.</span></span></span></span></div> Type D personality, Mental stress, Cognitive appraisal, University students 39 53 http://ieepj.hormozgan.ac.ir/browse.php?a_code=A-10-791-1&slc_lang=en&sid=1 Horiya Mahmoodi Beram mhmwdybramhwrya@gmail.com 10031947532846009465 10031947532846009465 No Department of Clinical Psychology, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran Maryam Soleyman Farokh maryam.farokh1313@gmail.com 10031947532846009466 10031947532846009466 No Department of Clinical Psychology, Birjand Branch, Islamic Azad University, Birjand, Iran Zahra Masihi d400.masihi.zahra@stumail.iaubir.ac.ir 10031947532846009467 10031947532846009467 Yes Department of Clinical Psychology, Birjand Branch, Islamic Azad University, Birjand, Iran Zohreh Soleymani Zohreh.soleymani2023@gmail.com 10031947532846009468 10031947532846009468 No Department of Clinical Psychology, Birjand Branch, Islamic Azad University, Birjand, Iran Maryam Moradi Maryammoradi2020x@gmail.com 10031947532846009469 10031947532846009469 No Department of General Psychology, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran