EN
A sport team is a social organization in which achieving the goals and executing the tasks is merely possible through participation and collective work. Team work and perceived performance capability in a team as a whole are also essential elements of a good performance. In this descriptive - correlative study, the statistical population of the study consisted of 145 student athletes (81 males and 64 females) who participated in intercollegiate sporting events in the 2013-2014 school years playing sports such as volleyball, basketball, soccer, and handball. The statistical sample was equal to the statistical population (81 males and 64 females). Group emotional intelligence (GEI) was measured by Hemphill’s (1956) GEI questionnaire with 4 subscales (intimacy, control, hedonic tone and viscidity). The questionnaire was revised by the author in 2001, and the Collective Self-Efficacy (CSE) questionnaire for sport was used to measure the CSE of student athletes. This questionnaire was developed and validated by Short el al. (2005) and it consists of 20 items. Team Work Effectiveness (TWE) questionnaire developed by Sterling and Selesnick (1998) was used to measure TWE of college student athletes. An internal consistency estimate was computed for three instruments and the alpha value for GEI, CSE and TWE were respectively, 0.80 and 0.85, 0.79. The results of the study revealed a positive and significance relationship between GEI and its subscales (except group control which had a negative relationship) with CSE and team work effectiveness. No significance differences were observed between male and female athletes regarding GEI, CSE and TWE.