Fuzzy vs. Likert Scale in Statistics

  • María Ángeles GilEmail author
  • Gil González-Rodríguez
Part of the Studies in Fuzziness and Soft Computing book series (STUDFUZZ, volume 271)


Likert scales or associated codings are often used in connection with opinions/valuations/ratings, and especially with questionnaires with a pre-specified response format.A guideline to design questionnaires allowing free fuzzy-numbered response format is now given, the fuzzy numbers scale being very rich and expressive and enabling to describe in a friendly way the usual answers in this context. A review of some techniques for the statistical analysis of the obtained responses is enclosed and a real-life example is used to illustrate the application.


Fuzzy Number Central Limit Theorem Response Format Simple Random Sample Fuzzy Random Variable 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • María Ángeles Gil
    • 1
    Email author
  • Gil González-Rodríguez
    • 1
    • 2
  1. 1.University of OviedoOviedoSpain
  2. 2.European Centre for Soft ComputingMieresSpain

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