摘要：In the early 21st century, rapid change has transformed so much the working environment of the managers are obliged to find new ways for their actions to adapt to evolution so that they can survive in the domestic and competitive arena. In fact, an organization will be successful that can achieve a competitive advantage. The purpose of the present study was to questionnaire determine validity and reliability of Competitive advantage Scale in the sport. This study was a kind of correlation analysis. The population of the study includes all male customers club sports (fitness and bodybuilding) Zanjan`s gave up. The sample according to the criterion of minimum required sample size for collecting data in the factor analysis, 260 customers were selected as sample. The questionnaire was distributed randomly. To gather the Competitive advantage factors affecting the questionnaire, customers (Hosseini, 2011), which has five components, homogeneous advantage, visible advantage, dynamic advantage, complex advantage, and constant advantage were used the Scoring method based on a Likert scale questions were worth 5. The face and content validity of the questionnaire was determined with the help of ten experts in Sports Sciences. In order to analyze test statistical Cronbach's alpha coefficient and Composite Reliability to determine the reliability of self-test, KMO for sampling adequacy taking, exploratory factor analysis to identify the parameters and confirmatory factor analysis to determine the validity of the statistical software SPSS 18 version and LISREL was used. the results about the relationships of factors with the meaning of Competitive advantage showed that all factors could be a good predictor for the concept of Competitive advantage, finally, the internal and external validity of Competitive advantage model was accepted. According to the approved instrument mentioned in this study, future researchers aimed to determine the extent of advertising by Competitive advantage tool can be used in the exercise.
