Journal of Education and Health Promotion 2277-9531 13 1 2023 01 01 Designing unified trans‑diagnostic interventions and their efficacy on the common mechanisms of the comorbid obsessive personality disorder with anxiety, depression, and obsessive‑compulsive disorder: A protocol study 1 5 28289 EN . Amin Zirakbash . Farah Naderi Professor, Department of Psychology, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran, 0000-0001-5801-5967 . Fatemeh Sadat Marashian Assistant, Department of Psychology, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran . Behnam Makvandi Associate, Department of Psychology, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran Journal Article 2023 02 22 BACKGROUND: The immense comorbidity among disorders could be ascribed to common<br />trans‑diagnostic processes. The term trans‑diagnostic has been of interest in both pathology<br />and psychology. Trans‑diagnostic treatments were created as opposed to treatments based on<br />single‑diagnosis treatments. It addresses the common underlying mechanisms in a range of comorbid<br />disorders. Trans‑diagnostic treatment is one of the new psychological treatments, and its efficacy has<br />been proven on many psychological variables. The main focus of the current study is on designing<br />unified trans‑diagnostic interventions and their efficacy on the shared mechanisms of comorbid<br />obsessive personality disorder with anxiety, depression, and obsessive‑compulsive disorder.<br />MATERIALS AND METHODS: the sequential transformative strategy has two stages; qualitative<br />and quantitative. In The first and qualitative section of the research, explanatory research will be<br />carried out to investigate the trans‑diagnostic intervention using a systematic review. To validate<br />the trans‑diagnostic intervention, and simultaneously with the trans‑diagnostic intervention, a<br />questionnaire has been prepared and given to 10 psychology experts and professionals in the<br />treatment field concerning content validity by evaluators.<br />Quasi‑experimental research will be assessed with a pre‑test, post‑test, and a two‑month follow‑up<br />after confirming the validity and reliability of the intervention in the quantitative section.<br />CONCLUSION: Designing unified trans‑diagnosis interventions and their efficacy on the common<br />mechanisms of comorbid obsessive personality disorder with anxiety, depression, and obsessive‑compulsive<br />disorder is an effective treatment method for helping those suffering from a personality disorder. Clinical<br />psychologists, psychology experts, psychiatrists, and mental health experts are all the immediate<br />beneficiaries of this study. Moreover, clients could benefit from this intervention with less money and time.<br /><br /> https://jehp.mui.ac.ir/article_28289_3a55002e105ec6b1177abe7dbe18384d.pdf