In this study, a sample of 377 female undergraduate students (188 non-athletes and 189 athletes) completed the Measures of psychosocial development questionnaire (Hawley, 1988) and Five Factor Inventory (Costa & McCrae, 1992). The Results showed that : a) the levels of personality components, except for neuroticism, were higher in athletes than in non-athletes; b) athletes were more psychosocially developed than non-athletes; c) the psychosocial development was correlated positively with extroversion, openness, agreeableness, and conscientiousness, and negatively with neuroticism; d) athletes with high neuronticism, agreeableness, and conscientiousness, were more psychosocially developed than non-athletes but extroverted non-athletes were more psychosocially developed than introverted athletes.