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:150%"><span style="line-height:150%">The present study aimed to develop and validate an educational program designed to reduce self-injurious behavior (SIB) among adolescents. This program was developed based on the real-life experiences of adolescents who engage in self-harming behaviors. Employing a qualitative research approach, specifically the phenomenological method, the study encompassed all adolescents displaying self-harming behaviors in Shiraz city. The sampling process was deliberate, with the sample size determined by reaching a point of theoretical saturation. Ultimately, the perspectives of 15 adolescents (comprising 8 girls and 7 boys) were actively incorporated into the development of this educational and therapeutic package. This process involved the formulation of a model based on their lived experiences, which consisted of three core themes and 13 sub-themes. The end result was an educational-therapeutic package specifically designed to mitigate self-harming behaviors. The content validity of this educational-therapeutic package was assessed and confirmed using the content validity (Lawshe method). Importantly, this package holds significant potential for use in implementing educational and therapeutic interventions aimed at addressing self-harming behaviors among adolescents. These interventions can be effectively delivered within the context of schools, counseling centers, and educational institutions.</span></span></span></span></span></div> Educational package, lived experiences, reducing self-harming behaviors, validation, teenagers 29 42 http://ieepj.hormozgan.ac.ir/browse.php?a_code=A-10-662-1&slc_lang=en&sid=1 AliAkbar Khaleghpour khaleghpoor.eb.psy@gmail.com 100319475328460010300 100319475328460010300 No PhD Student in Counseling, Counseling Department, KhomeiniShahr Branch, Islamic Azad University, KhomeiniShahr, Iran. Fatemeh Javadzadeh Shahshahani javadzade@iaukhsh.ac.ir 100319475328460010301 100319475328460010301 Yes Assistant Professor of Counseling Department, KhomeiniShahr Branch, Islamic Azad University, KhomeiniShahr, Iran. Najmeh Sedrpoushan Sedrpoushan.naj@gmail.com 100319475328460010302 100319475328460010302 No Assistant Professor of Counseling Department, KhomeiniShahr Branch, Islamic Azad University, KhomeiniShahr, Iran.