Inferential confidence intervals for fuzzy analysis of teaching satisfaction

Inferential confidence intervals for fuzzy analysis of teaching satisfaction Fuzzy sets are an extension of classical sets, used to mathematically model indefinite concepts, such as that of customer satisfaction. This is obtained by introducing a membership function expressing the degree of membership of the elements to a set. Intuitionistic fuzzy sets represent an extension of the theory of fuzzy sets, in which also a suitable non-membership function is defined. In this paper we aim at quantifying a latent construct, namely satisfaction, using fuzzy sets and intuitionistic fuzzy sets. We put forth a general evaluation method: first, we introduce a fuzzy satisfaction index to obtain membership values. Second, inferential confidence intervals (ICI), calculated through Bootstrap-t and percentile procedures, are used to assess the uncertainty underpinning membership and non-membership estimates. Third, we address the problem of optimal and multiple ICI, as well as their generalization through p values and q-values. In particular, we consider the problem of analyzing the responses to evaluation questionnaires. We apply this new method to a national program of evaluation of University courses and we discuss our framework in comparison with other evaluation techniques. Quality & Quantity Springer Journals

Inferential confidence intervals for fuzzy analysis of teaching satisfaction

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Springer Netherlands
Copyright © 2016 by Springer Science+Business Media Dordrecht
Social Sciences; Methodology of the Social Sciences; Social Sciences, general
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