Humanistic psychology is one of the ways that explain individual's self-assessment. Self-assessment is the result of biological, psychological and psychosocial cooperation. Study objectives: theoretical and experimental study of the influences by attitude of the individual to self-assessment. Research methodologies; A-Methodology on individual's self-assessment by Budasi; B-Methodology of Dembo-Rubinstein; F-Methodology on individual's self-assessment by O.I.Motkov; G-Questionnaire survey on assessment of relationships of young people with friends. Spearman's Rs=1-0,28=0,71 Forming experiments were arranged on studied groups and it's importance between control groups was defined. A-The interval of rank correlation of the first and second experiment is between r-0,34 and r-0,71; by methodology B is between r-0,42 and r-0,77, by methodologies F-G between r-0,32 and r-0,75. In conclusion, the one of the criteria of reaching the high results in raising the general self-assessment is defining the psychological support and professional abilities and real capabilities of learning the professional relations skills.
