Özet:

The purpose of this study is to study the classification of students according to different qualifications based on the mathematical test data in the TIMSS 2015 Turkish sample. For this purpose, the cognitive diagnosis models have been used by the DINA and DINO models. In the Q-Matrix where the quality and material match is done, the quality size is defined by four different Q-Matrix, including the levels of the content field (number, data display, geometric shapes and measurements), the levels of the cognitive field (knowledge, application, mindfulness), the levels of both the content and the cognitive field, and the levels obtained through the Basic Components Analysis. As an assessment criterion for which classification is better performed, the accuracy and consistency of the classifications obtained by these four different Q-Matris have been studied. The study group consists of 463 fourth-class students who have the first library in the TIMSS 2015 Turkish sample. The data used in the study is TIMSS 2015 4. It has been obtained from 23 items selected from 25 questions in class 1 mathematics library. According to the findings of the research, the Q-Matrix students, where the content field levels were used as the qualification size, were the best class matrix. Finally, using this matrix, it was classified according to the DINA Model, which ranked the best in the research framework, and the results were discussed.

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