摘要：The authors of this study define a relationship with a best friend as a form of interpersonal relationship between two people who are close, based on mutual attraction, respect and recognition, within which there is support and protection, intimacy, satisfaction, enjoyment in one another’s company, and successful resolution of problems. The purpose of this study was to establish the dimensions of a friendship relationship and test the structure of a questionnaire examining the quality of a friendship relationship in the category of “best friend”. The research was conducted via a survey method on a sample of 316 students of 5th, 6th and 7th grades of elementary school. The factor structure of the questionnaire was studied by a combination of exploratory and confirmatory factor analysis. The analysis of the questiononaire’s structure resulted in a 4-factor model with 17 items that meet the recent criteria in validation of research instruments. The extracted factors indicate the importance of intimacy, use of leisure time, emphasizing the person’s value and protection. According to all important indicators, the final model was shown to be methodologically reliable as a simple instrument with a potential of wide practical application in research on quality dimensions of a relationship between best friends.
