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Methods for Summarizing the Rasch Model Coefficients

Author

Listed:
  • Giovanna Nicolini

    (Department of Economics, Business and Statistics)

  • Francesca De Battisti

    (Department of Economics, Business and Statistics)

Abstract

The application of the Rasch model to measure the Quality and Customer Satisfaction of a service is possible only for a single dimension of the service. But we know that the Quality and Customer Satisfaction of a service are a compound of more than one dimension. In such a case the Rasch method cannot be applied. As it is well known, the one dimension Rasch model supplies two graduated lists: the first is about subject satisfaction and the second concerns item quality. If there are K service dimensions and if the Rasch model is applied to each of them, K different graduated lists of subject satisfaction for the n individuals are obtained. The aim of this work is to define an overall individual satisfaction measure obtained as linear combination of the K subject graduated lists, with weights estimated in two different ways, for different hypothesis. We have shown that these two methods are consistent.

Suggested Citation

  • Giovanna Nicolini & Francesca De Battisti, 2006. "Methods for Summarizing the Rasch Model Coefficients," UNIMI - Research Papers in Economics, Business, and Statistics unimi-1039, Universitá degli Studi di Milano.
    • Handle: RePEc:bep:unimip:unimi-1039
    Note: oai:cdlib1:unimi-1039
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    Cited by:

    1. Francesca DE BATTISTI & Giovanna NICOLINI & Silvia SALINI, 2008. "Methodological overview of Rasch model and application in customer satisfaction survey data," Departmental Working Papers 2008-04, Department of Economics, Management and Quantitative Methods at Università degli Studi di Milano.

    More about this item

    Keywords

    Rasch Model; Overall Satisfaction Measure;

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