The questionnaire is designed to measure personality variable called the sense of control over consequences of behaviour described in J.B. Rotter's theory of social learning. The KBPK questionnaire can be applied both in scientific research and in individual assesssment. In the latter it can be used as a complementary tool to assess young people personalities. As such it allows to enrich knowledge about multi-dimensional personality functioning. It can be useful in clinical and legal assessments as well as in the context of education and re-socialization.