Tarbiat Modares University International Journal of Musculoskeletal Pain Prevention 2476-5279 10 4 2025 12 25 Presentation of a Causal Model of Athletic Success Based on Positive Psychological Experiences and Achievement Motivation with the Mediating Role of Self-Esteem in Student Athletes 1324 1332 28023 10.48311/ijmpp.2025.116839.82902 EN Ali Jalili Shishavan Department of Sport Psychology, Allameh Tabataba&#039;i University, Tehran, Iran Journal Article 2025 10 28 Aims:The objective was to construct a causal model to investigate the direct and indirect effects of positive psychological experiences and achievement motivation on athletic success, with self-esteem serving as a mediating factor, among elite student athletes.<br>Method and Materials:A sample of 230 elite student athletes was selected through random sampling. Data were collected using the Positive Psychological States Questionnaire (Rajaei et al., 2011), Eysenck’s Self-Esteem Inventory (1976), the Athletic Success Questionnaire (Mousavi & Vaez, 2015), and Hermans’ Achievement Motivation Scale (1970). Data analysis was performed using SPSS and AMOS software, incorporating both descriptive and inferential statistical methods.<br>Findings: The proposed model exhibited a good fit. Positive psychological experiences and achievement motivation showed both direct and indirect (through self-esteem) positive and significant effects on athletic success. Self-esteem played a critical mediating role in enhancing the relationship between positive psychological experiences, achievement motivation, and athletic success.<br>Conclusion The findings highlight the significance of fostering positive psychological factors and self-esteem to enhance athletic success. These results provide a foundation for designing psychological interventions and educational programs for coaches and athletes to optimize performance. https://ijmpp.modares.ac.ir/article_28023_3c03e7f05b5cbd91dffba3da4986bc1a.pdf