ENThe present article is devoted to the issues of self-evaluation of one's own behaviour in its varied manifestations and is treated as an important vehicle in the process of personality spiritual shaping. This stage of the process serves to accomplish the internalization of values, and adds the dimension of meaningrulness to the instances of everyday behaviour in terms of spirituality. The investigation under discussion presents evidence that senior teenagers tend to rank highest their moral qualities, like fidelity, respect, sympathy, and a sense of humour, while on the other hand, they tend to rank the lowest the values of altruism (in its manifestations of self-sacrifice and devotion to one's job responsibilities) and holiness (i.e., believing in God and spiritual unity). The investigation made it possible to identity rather low rankings of the values of enjoying the beautiful, and intellectuality, and solidarity. The data that were obtained with the help of the criterion chi method allow to judge about the possible impact on the behavioural selfevaluation manifestations that may be caused by a number of factors, such as: a) the level of internalization of spiritual values; in this relation, it is noteworthy to point out that the particular values that are devoid of their interrelations with reference to teenagers' self-evaluation on the emotional level are ranked by the teenagers lowest of all; b) the gender of students; girls tend to rank the manifestations of their behaviour higher than boys; c) the factor of the educational institution, i.e., type of school and self-feeling at school. The factor of family life, on the other hand, does not seem to have significant impact (composition of family, self-feeling at home) on the teenagers' behaviour self-evaluation manifestations in terms of spirituality.