Introduction: Effective citizenship behavior can have a significant role in confidence increase and improvements in athletes that have close relationship with group cohesion. Group cohesion is one of important indexes that has great effects on group memberships. The purpose of this research was to predict the group cohesion in athletes based on the sub-scales of Organizational Citizenship Behavior.
Methodology: This research is a kind of descriptive – correlational and in terms of target is in grouping of applied research that had executed locally. For this purpose, 159 athletes were picked out totally as statistics sample among 167 athletes. Two standard questionnaires were used in order to gather required data. At first, Organizational Citizenship Behavior (OCB ) questionnaire of Padsakef (199 ) was used that contains five components and designed according to 5 degrees of Likert Spectrum, after that group cohesion questionnaire of Kortiz and Anjelo konaki (199 ) was used which contains 4 components and 5 degrees of Likert spectrum.
Results: The results showed that there was a significant relationship between group cohesion and organizational citizenship behavior and 3 components of help, goodwill and civic virtue have ability to predict the integrity of the band and these three components together account for 16% of the variability criteria.
Discussion: According to the results of the study, it was shown that in order to group cohesion predicted by use of organizational citizenship behavior (OCB), three factors of help, goodwill and civic virtue were predictable that is aligned with research results of Vahdani (1391). It is necessary for people to help each other for based integration establishment and prevent of problems and also know team or organization goals as their own goals and try to achieve them. So it can be said that if the goals of people are aligned with organizational goals, group cohesion is also higher.