This article presents the results of a study of the relationship between the type of parent-child relationship and the characteristics of interpersonal relationships of adolescents with peers. The main aspects of the formation of the system of interpersonal relations in adolescence are described. In the study, the respondents included students of the Faculty of Secondary Vocational Education of the Autonomous non-profit organisation of higher education Belgorod University of Cooperation, Economics and Law, 50 people in total. The evaluation of the characteristics of interpersonal relationships of adolescents was carried out according to the results of the following methods – Timothy Leary's Interpersonal Behaviour Circle and the “Comprehensive methodology for assessing social behaviour (competence)ˮ developed at the Centre for Sociology of Education of the Russian Academy of Education by Daniil Khlomov, Sergey Baklushinskiy, Ol’ga Kaz’mina, thereby identifying a group of adolescents with extremely distinct results of the qualitative assessment of interpersonal relations. This group of adolescents have interpersonal relationship difficulties, there are signs of ill adaptivity of interpersonal (social) behaviour. The features of educational strategies in adolescent families were studied using the questionnaire on parental attitude towards children – “mirrorˮ for Analysis of family relationships (Edmond Eydemiller, Viktoras Justickis) and the Parent-Child Interaction Questionnaire (Irina Markovskaya). Data processing statistical methods used include Student's t-test, Kruskal–Wallis H test, cluster analysis using SPSS. In the course of the work, four types of family upbringing were identified and described, with possibility to detect in each type the disfunction signs’ characteristic in the interpersonal relations system. The results indicate partial confirmation of the hypothesis about a correlation between various aspects of interpersonal relationships of adolescents and types of family upbringing.

The article focuses on the issue of improving athletes’ performance. The subject of the research is personal determinants of improving the effectiveness of sports activities among young people. The purpose is to identify personal determinants that predefine the effectiveness of sports among young people. In the process of studying personal determinants that predefine the effectiveness of sports among young people we applied the methods of logical, theoretical and comparative analysis, content analysis, interpretation and scientific data interpretation, generalisation and modelling. On the basis of theoretical analysis the study identified the most significant personal determinants for the increase in the effectiveness of sports among youth, developed a theoretical structural and functional psychological “Personal determinants of improving the effectiveness of sports among young people” model and determined the interrelation of intrapersonal structures mediating the process of the influence of biological, social and individual personal determinants to increase the effectiveness of sports among young people

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