en روانشناسی Psychology Original Article <div style="text-align: justify;"><span style="font-size:12px;"><span style="font-family:Times New Roman;"><span style="line-height:115%"><b><span lang="EN-GB"><span style="line-height:115%">Background</span></span></b><span lang="EN-GB"><span style="line-height:115%">: Various psychological factors can affect the type of emotions. Therefore, the aim of the present study was to predict anger suppression based on obsessive beliefs and preoccupied attachment style among non-clinical population.</span></span></span><br> <span style="line-height:115%"><b><span lang="EN-GB"><span style="line-height:115%">Methods</span></span></b><span lang="EN-GB"><span style="line-height:115%">: The research method was a descriptive-correlation type. </span></span><span style="line-height:115%">The statistical population included all undergraduate students of the humanities faculties of </span><span lang="EN-GB"><span style="line-height:115%">Universities of Tehran</span></span><span style="line-height:115%"> in the academic year of 2022-2023, who were selected through Cluster sampling of 312 students.</span><span lang="EN-GB"><span style="line-height:115%">Usage: State-Trait Anger Expression Inventory-2 (STAXI-2), Obsessive Beliefs Questionnaire (OBQ-44) and Experiences in Close Relationships (ECR) were used. Finally, the data were analysed by Pearson correlation and multiple regression methods.</span></span></span><br> <span style="line-height:115%"><b><span lang="EN-GB"><span style="line-height:115%">Results</span></span></b><span lang="EN-GB"><span style="line-height:115%">: The results of step-by-step regression analysis showed that both scales of preoccupied attachment style and obsessive beliefs are able to significantly predict anger suppression. In the first step, the preoccupied attachment style<br> (&beta; = 0.54, P < 0.001) explained 29.3% of the variance of anger suppression, and in the second step, the obsessive beliefs scale (P < 0.001, 0.13) = &beta;) was also added to the model and increased the explained variance to 30.9% and actually increased the explanation coefficient by 1.6%.</span></span></span><br> <span style="line-height:115%"><b><span lang="EN-GB"><span style="line-height:115%">Conclusion</span></span></b><span lang="EN-GB"><span style="line-height:115%">: The findings of the study confirm the relationship between preoccupied attachment style and obsessive beliefs for anger suppression. Separating the role of attachment styles and incompatible beliefs can have a significant effect on expressing or not expressing anger.</span></span></span></span></span><br> &nbsp;</div> Anger, cognitive distortions, attachment 1322 1330 http://sbrh.ssu.ac.ir/browse.php?a_code=A-10-499-1&slc_lang=en&sid=1 Mitra Ashoori Ashoori.mitra.94@gmail.com 0000-0002-4124-8761 Yes Department of Psychology, West Tehran Branch, Islamic Azad University, Tehran, Iran Seyedeh Zahra Mohtarami Zavardeh Mzahramohtarami94@gmail.com 0009-0008-9388-279X No Department of Psychology, West Tehran Branch, Islamic Azad University, Tehran, Iran