Abstract:

Nowadays, although most of the decision-making problems require the use of indefinite information, many decision-making and problem-solving tools are solved by the use of quantitative data. The fuzzy set theory allows the use of approximate, inexact information in the decision making process, and ensures that many indefinite problems are mathematically formulated. In this study, the fuzzy logic approach was mentioned, the advantages and disadvantages of fuzzy logic were discussed, fuzzy logic and social fields and studies especially in the field of education were examined. The answer to the question of “How and why is fuzzy logic used in educational researches?” has been examined. It is aimed to give an idea to the researchers about the studies in this area by referring to the contents of the studies. Studies have been found to have concentrated on researching success classification and personnel selection. The results of the studies show that instead of focusing only on certain quantitative values in the determination of academic success, turning onto the multiple criteria brings along more flexible and realistic ranking or classification with it and the evaluation done by fuzzy logic gives more successful results than the other classical evaluation methods.

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