en ● Health Education مقاله اصيل پژوهشي Orginal Article <p style="line-height:1.2; text-align:justify"><span style="line-height:2;"><span style="font-size:14px;"><span style="font-family:Tahoma;"><strong>Background</strong>: It is important to recognize and use the strengths of children with oppositional defiant disorder (ODD). This study assessed whether strength-based intervention is effective on subjective well-being and psychological capital in children with ODD.&nbsp;<br> <strong>Methods</strong>: This research was a quasi-experimental study with a pre-test and post-test design with a control group. The statistical population included 30 students with ODD in discreet six, which were selected through multi-stage clustering in Tehran during the academic year 2022. Then, the individuals were randomly assigned to the experimental and control groups (each group: n=15). The subjective well-being and Luthans&rsquo; psychological capital (PCQ) questionnaires were administered. For the experimental group, a strength-based intervention was administered in eight sessions of 75 minutes per week, while the control group received no treatment. The data were analyzed using MANOVA and SPSS software, version 26.&nbsp;<br> <strong>Results:</strong> The strength-based intervention had positive effects on subjective well-being (F1, 28=23.42, P<0.001) and psychological capital (F1, 28=28.12, P<0.001) in children with ODD.&nbsp;<br> <strong>Conclusion</strong>: This type of approach builds on clients&rsquo;&nbsp;strengths, seeing them as resourceful and resilient when they are in adverse conditions. This study encourages new evidence for the efficacy of a strength-based intervention.&nbsp;</span></span></span><br> &nbsp;</p> Strength-based, Psychological well-being, Female, Students, Oppositional defiant disorder 333 342 http://jrh.gmu.ac.ir/browse.php?a_code=A-10-2151-1&slc_lang=en&sid=1 Mohsen Ghorbani mhosravi94@gmail.com 123 100319475328460029411 No Department of Psychology, Faculty of Psychology and Social Sciences, Roudehen Branch, Islamic Azad University, Roudehen, Iran. Fatemeh Talebi talebi.fatemeh1967@gmail.com 322 100319475328460029412 No Department of Psychology, Faculty of Humanities, Malard Branch, Islamic Azad University, Malard, Iran. Elahe Khodadadi khajeh8794@gmail.com 56567 100319475328460029413 No Department of Psychology, Faculty of Literature & Humanities, Mohaghegh Ardabili University, Ardabil, Iran. Fatemeh Sadat Mohtashami mohtashami.f222@gmail.com 123 100319475328460029414 No Department of Educational Sciences, Faculty of Psychology and Social Sciences, Tehran Central Branch, Islamic Azad University, Tehran, Iran. Sahar Froumandi froumandi.s@gmail.com 322 100319475328460029415 Yes Department of Psychology, Faculty of Humanities, Urmia Branch, Islamic Azad University, Urmia, Iran.