4th International E-Conference on Mathematical Advances and Applications(ICOMAA 2021), İstanbul, Turkey, 26 - 29 May 2021, pp.152-153
In this study, a new decision-making algorithm and method were given. We used PFS in the given method. PFS was preferred because it is known that PFS gives clearer results than IFS. The effect of music on cognitive development in early childhood was examined with this decision-making method. In practice, the opinions of the experts about cognitive development and the results of the method we proposed were compared. In this study, the expectation score function was used. Weights and thus the aggregated Pythagorean fuzzy decision value (APFDV) are calculated with the values obtained from this function. The ranking is done with APFDV. Here, the values obtained from expert opinions are determined as follows: Whichever expert has given more opinion about the criteria, has been in the ranking before. Again, whichever specialist has given fewer opinions remains behind the rankings. This is very suitable for real-life events. The rankings obtained from the algorithm of the study were the same as the rankings of the opinions of the experts.