Summary
In this article we discuss the identifiability of a probability model which has been proven useful for capturing the main features of ordinal data generated by rating surveys. Specifically, we show that the mixture of a shifted Binomial and a Uniform discrete distribution is identifiable when the number of categories is greater than three.
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Iannario, M. On the identifiability of a mixture model for ordinal data. METRON 68, 87–94 (2010). https://doi.org/10.1007/BF03263526
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DOI: https://doi.org/10.1007/BF03263526