Big Five Personality Traits and Self-Esteem as Predictors of Life Satisfaction in Iranian Muslim University Students

This study presents the first examination of the relation between the Big Five personality traits, self-esteem, and life satisfaction in Iran, which is an understudied country in the well-being literature. Participants were 235 university students at the University of Tehran, all reporting their religious affiliation as Muslim. Findings revealed that the Big Five personality traits explained about 25% of the variance in life satisfaction scores. Among the Big Five traits, extraversion and neuroticism were found to be the strongest predictors of life satisfaction. In addition, it was found that self-esteem significantly predicted life satisfaction over and above the Big Five personality traits. Findings also showed that self-esteem completely mediated the influence of conscientiousness and agreeableness on life satisfaction, while the influence of extraversion and neuroticism on life satisfaction was partially mediated by self-esteem. Furthermore, findings revealed that female students scored significantly higher than male students on life satisfaction. Sex also could moderate the relation between conscientiousness and life satisfaction. This relation was found to be significantly stronger for female students. Implications of the results are discussed with reference to prior studies on the relation between personality traits and different aspects of well-being in Iran.