International Journal of Health Studies2423-65948320211027 The Effectiveness of Mindfulness-Based Stress Reduction and Dialectical Behavior Therapy on Self-Determination Needs and Academic Burnout among Students Showing Depressive Symptoms 4247 10.22100/ijhs.v8i3.923 EN Farahnaz Sadat Mousavi Department of Psychology, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran. Fatemeh Sadat Marashian Department of Psychology, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran. Saeed Bakhtiarpour Department of Psychology, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran. 20211005 20211009 20211027 Background: The satisfaction of self-determination needs and alleviation of academic burnout help students reduce/adjust the stress and psychological pressure resulting from studies and the university entrance examinations. The present study aimed to investigate the effectiveness of mindfulness-based stress reduction (MBSR) and dialectical behavior therapy (DBT) on self-determination needs and academic burnout among students showing depressive symptoms in Dehloran (Iran). Methods: In this experimental study, the statistical population comprised all female twelfth-grade high-school students studying for the university entrance exam in Dehloran, Iran in the academic year 2020-21. The sample consisted of 45 students showing depressive symptoms who were selected by convenience sampling, and then randomly divided into two experimental (MBSR and DBT) and a control group (n=15 each). Either MBSR or DBT intervention was administered to the experimental groups, but the control group received no intervention. The research instruments included the Self-Determination Needs Scale, Academic Burnout Scale, and Beck Depression Inventory-II (BDI-II). The data were analyzed via descriptive statistics and multivariate analysis of covariance (MANCOVA). Results: The results showed that MBSR and DBT both positively affected the self-determination needs (F=92.44, Pvalue=0.001) and academic burnout (F=68.54, Pvalue=0.001) of students studying for the university entrance exam and showing depressive symptoms. According to the results, MBSR was more effective in students' self-determination and academic burnout (Pvalue=0.01). Conclusions: It was found that both MBSR and DBT can help improve the self-determination needs and academic burnout of female high-school students studying for the university entrance exam and showing depressive symptoms. Keywords: Mindfulness, Dialectical behavior therapy, Self-determination, Depression, Students