Improving the effectiveness of education in the teaching of computer graphics is the organization of the educational process using new information and communication technologies, as well as quality control of the learning modules. With this in mind, the article provides a theoretical analysis of the methodology of compiling test questions from computer graphics and some related graphic disciplines. The relationship of factor theory to the graphical sciences has been identified. As a result, the three-level test task system structure based on specific formulas and their factors has been studied so far. Also, the system of assessment of students in four categories was tested using a general automated software tool for questionnaires and test control. Based on the results, mathematical statistical analysis was performed, and the range of variation of the four categories was shown.