The article presents the results of a study conducted in order to study personality factors that determine characteristics of interpersonal relations of teenagers, whose formation is the most important task of their age development. It is shown that the process of formation of selfesteem and self-concept of teenagers occurs in the context of their socio-psychological development and is determined by the system of interpersonal relations. The results of the empirical study performed on a sample of teenagesr aged 12–14 (n = 85) are presented.
