摘要：The purpose of this study was to investigate the role of mediator of self-determination theory in perfectionism, burnout and engagement in athletes. The statistical population of this study included athletes who attended the Premier League and national team in Tehran, and 300 athletes were completed Perfectionism, Burnout, Engagement, Psychological Need Thwarting, Basic Need Satisfaction questionnaires. Pearson correlation test and structural equations were used to analyze the data. The findings showed that perfectionism's concerns had a positive relationship with The Psychological Need Thwarting and burnout. On the contrary, the perfectionist strivings had a positive relationship with the Basic Need Satisfaction and athlete engagement, and the negative relationship with the Psychological Need Thwarting and burnout. Psychological Need Thwarting had positive relationship with the athlete's burnout and negative relationship with perfectionist strivings and Basic Need Satisfaction. Conversely Basic Need Satisfaction had positive relationship with the athlete engagement and negative relationship with the athlete's burnout. As it is expected, the relationships between perfectionism - engagement and perfectionism -burnout-are justified, despite the provision of basic psychological needs.
关键词：: Perfectionism;Burnout;Engagement;Self-Determination Theory
