A mixture model for ordinal data modelling (denoted CUB) has been recently proposed in literature. Specifically, ordinal data are represented by means of a discrete random variable which is a mixture of a Uniform and shifted Binomial random variables. This article proposes a testing procedure for comparing CUB models which helps to detect similarities in the structure of judgements that raters express on set of items.

A testing procedure for clustering ordinal data by CUB models

CORDUAS, MARCELLA
2008

Abstract

A mixture model for ordinal data modelling (denoted CUB) has been recently proposed in literature. Specifically, ordinal data are represented by means of a discrete random variable which is a mixture of a Uniform and shifted Binomial random variables. This article proposes a testing procedure for comparing CUB models which helps to detect similarities in the structure of judgements that raters express on set of items.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/343440
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