<p>The development of imaginative thinking is one of the main tasks of educational work with preschoolers, because it allows the child to be successful in preschool activities, where the most favorable conditions for the formation of age new achievements are formed. The need for diagnostic tests to determine the level of imaginative thinking of preschoolers is related both to the need to assess the effectiveness of educational work with children, and to identify the level of development of the child. The most informative and reliable results of the assessment of cognitive processes are provided by the use of standardized test. In Russian psychology, there is only one such test - "Schematization" (author R.I. Bardin). This test was created and standardized at the end of the last century and its psychometric characteristics and assessment standards need to be updated for a modern sample. The article presents the results of the re-standarization of this test. The experimental sample of the study consisted of N = 2425 children of senior preschool age: children 5-6 years old (M = 66 months; SD = 3.09 months; n = 974) and 6-7 years old (M = 77 months; SD = 3.21 months; n = 1451). For psychometric verification, confirmatory factor analysis, Cronbach's alpha and McDonald's omega coefficients, Spearman correlation coefficient, Mann-Whitney U criterion and two-factor analysis of variance were used. The norms were calculated using percentile normalization. The obtained results showed the conformity of the test with psychometric requirements and allowed us to determine the current norms for the development of imaginative thinking of older preschool children.</p>