Normization of knowledge and competence questionnaire in karate trainers of Alborz province

The aim of the current research was to standardize the knowledge and competence questionnaire of coaches in sports. The statistical population of this research was made up of karate coaches in Alborz province, among whom 284 people were selected in the form of available sampling. The measurement tool used was the 20- question questionnaire by Ricardo et al. (2018), which has three components (professional knowledge, interpersonal knowledge, and intrapersonal knowledge). The scoring method for the questions was based on a five-point Likert scale (1=very low to 5=very high). The statistical methods used were descriptive indices to describe the data, Cronbach's and Raykov's alpha coefficients to determine internal consistency, and exploratory factor analysis and confirmatory factor analysis to determine construct validity in SPSS, LISREL, and Stata statistical software. The research findings showed the reliability (α=0.945) for the knowledge and competence questionnaire of teachers. Regarding the construct validity and based on the relationship and Tvalue, all the questions had a significant relationship with the factors and could be a good predictor for their factor. The ratios of x2 to df (4.1), RMSEA=0.091, CFI=0.96, AGFI=0.90, RMR=0.048, NFI=0.94 and GFI=0.92 show the model fit confirmed. Also, regarding the relationships of factors with the concept of knowledge and competence of trainers, the results showed that all factors could be good predictors for the concept of knowledge and competence. As a result, the validity and reliability of the "Knowledge and competence of coaches in sports" model was confirmed.