Psychometric Properties of the Persian version of the Social Identity Questionnaire for Sport

The purpose of this study was to investigate the psychometric properties (validity and reliability) of the Persian version of the social identity questionnaire for sport. The research method is non-experimental studies in the field of instrument validation in which the necessary information was collected cross-sectionally. The statistical population of the present study consisted of athletes in District 10 of Tehran. The statistical sample also included 180 people who were selected by random sampling method and completed the social identity questionnaire for sport (SIQS). The questionnaire consists of nine questions and three sub-scales including in-group ties (IGT), cognitive centrality (CC), and in-group affect (IGA). Data were analyzed with Confirmatory factorial analysis based on structural equations, Cronbach’s alpha coefficient, and intra-class correlation coefficient tests. The result showed that the social identity questionnaire for sport (SIQS) has acceptable fit indexes (RMSEA=0.044, CFI=0.947, TLI=0.963, PNFI=0.987, and AGFI=0.921), internal consistency, and temporal reliability. Thus, the Persian version of the social identity questionnaire for sport (SIQS) has acceptable reliability and validity in Iranian athletes, and coaches, researchers, psychologists, and athletes can use this questionnaire.