one of the most famous tests for measuring the level of intellectual development, based on David Wechsler’s hierarchical model of intelligence. The test diagnoses general intelligence and its components – verbal and non-verbal intelligence in the form of numerical indicators – IQ coefficient. The test is focused primarily on distinguishing between normal and abnormal in intellectual development: on the elimination of subjects who do not meet the requirements of a particular activity. Differentiation of subjects by numerical IQ values above the norm is not appropriate.