en روان شناسی تکاملی Evolutionary Psychology پژوهشي Original <div style="text-align: justify;"><span style="color:#3333ff;"><span style="font-size:14px;"><span style="font-family:Times New Roman;"><span style="line-height:2;"><span style="page-break-after:avoid"><b>Objective</b>: <span lang="EN">This study examined the mediating roles of internalizing problems and non-suicidal self-injury (NSSI) and the moderating roles of resilience and social support in the relationship between school bullying victimization and adolescent suicidal ideation. </span></span><br> <span style="page-break-after:avoid"><b>Methods:</b> Using a descriptive-correlational structural equation modeling (SEM) design, 389 adolescents with suicidal ideation were recruited through convenience sampling from psychological clinics in Mashhad, Iran. Participants completed standardized questionnaires assessing bullying victimization (Olweus), suicidal ideation (BSSI), internalizing problems (DASS-21), self-harm (Sansone), resilience (CD-RISC), and social support (Vaux). Data were analyzed using SEM and bootstrapping in R. </span><br> <span style="page-break-after:avoid"><b><span lang="EN">Results:</span></b><span lang="EN"> The model showed good fit (RMSEA = .039, CFI = .94). Bullying victimization significantly and directly predicted suicidal ideation, internalizing problems, and NSSI. Both internalizing problems (&beta; = .376) and NSSI (&beta; = .225) significantly mediated the link between victimization and suicidal ideation. Moreover, resilience and social support significantly buffered these pathways, supporting all six hypotheses. Whereas bullying victimization fosters suicidal ideation through heightened internalizing symptoms and self-harm, resilience and social support serve as protective factors that mitigate this risk. </span></span><br> <b>Conclusions</b>: <span lang="EN">The findings highlight the need for school-based interventions that strengthen psychological resilience and support systems to safeguard bullied adolescents.</span></span></span></span></span></div> Bullying victimization, Suicidal ideation, Internalizing problems, Non-suicidal self-injury (NSSI), Resilience, Social support 0 0 http://ieepj.hormozgan.ac.ir/browse.php?a_code=A-10-1246-1&slc_lang=en&sid=1 Zahra Ghaffari z.ghaffari6071@iau.ir 100319475328460013650 100319475328460013650 No Department of Psychology, Ne.C., Islamic Azad University, Neyshabur, Iran Mohammadreza Khodabakhsh Khodabakhsh@iau.ac.ir 100319475328460013651 100319475328460013651 Yes Department of Psychology, Ne.C., Islamic Azad University, Neyshabur, Iran Zahra Bagherzadeh Golmakani z.golmakani@iau.ac.ir 100319475328460013652 100319475328460013652 No Department of Psychology, Ne.C., Islamic Azad University, Neyshabur, Iran Mahdi Akbarzadeh Ir.m.akbarzadeh_phd_caco@iau.ac.ir 100319475328460013653 100319475328460013653 No Department of Psychology, Ne.C., Islamic Azad University, Neyshabur, Iran