The object of the study was cognitive styles. The subject of the study was the relationship of cognitive styles, the difference of cognitive styles at girls and boys. The master's thesis consists of an introduction, two chapters, conclusion, a list of literature (53 sources) and applications, including forms of applied methods, a table of the results of the correlation analysis. The volume of the master's thesis is 103 pages, on which are placed 6 figures and 10 tables. The introduction reveals the relevance of the research problem, the development of the problem, the purpose and objectives of the research, the object and subject of the research, hypothesis are formulated, the methods and the empirical base are indicated. The first chapter includes a review of foreign and domestic literature on the research topic, a description of approaches to the study of cognitive styles, their types and position in the system of cognitive activity. Conclusions on the first chapter are the results of the study of theoretical material. The third Chapter is devoted to the empirical part of the study. It describes the organization and methods studies and the results obtained for all methodologies used: AHS questionnaire (Koo and Choi), the technique of “Copying a complex figure of Ray-Osterritz” (JH Bernstein, DP Waber), a technique for assessing the thinking styles of K. Bezinger, the method of “Included figures” (Witkin, Oltman, Raskin, Karp), the method of “ Comparison of similar figures (The Matching Familiar Figures Test), the method of free associations (Gardner, Holzman, Klein, Linton, Spence), a questionnaire to identify the verbal-visual style of thinking (Richardson).. The conclusions of Chapter 2 include the main results of the empirical study. In conclusion, the results of the theoretical and empirical parts of the work, as well as conclusions on the hypotheses put forward, the practical significance of the study.