The article discusses a tool for determining personality type using the Myers-Briggs method (MBTI - Myers-Briggs Type Indicator). A socio-psychological study of youth was conducted in order to determine the correspondence of self-assessment of personality characteristics and identified personality types according to MBTI testing. The interrelation of the respondent’s self-assessment on four scales and the identified personality type is considered. According to the results of the study, it was revealed that young people aged 18–19 years determine their type by mistake more often than older respondents. On the J-P (judgment-perception) scale, 72.4% of respondents correctly identified their predominant type, this scale considers which path the test taker chooses – orderliness or variability. The most common type in this study is ESTJ (extrovert, sensory, logical, rational), 22 respondents (22.4%) have it.