Methods for Summarizing the Rasch Model Coefficients
Giovanna Nicolini, Department of Economics, Business and Statistics
Francesca De Battisti, Department of Economics, Business and Statistics
Download the Paper (PDF format) - October 19, 2006
Tell a colleague about it.
Printing Tips: Select 'print as image' in the Acrobat print dialog if you have trouble printing.
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 and Francesca De Battisti,
"Methods for Summarizing the Rasch Model Coefficients"
(October 2006).
UNIMI - Research Papers in Economics, Business, and Statistics.
Statistics and Mathematics.
Working Paper 20.
http://services.bepress.com/unimi/statistics/art20
| 
