Abstract
AbstractThe present study discusses two variants of linear logistic models for polytomous variables for „unordered”︁ and for „ordered”︁ categories (polydimensional and one‐dimensional model). The ML‐estimation equations and the possibilities to test the validity of the model are given for both. A test for goodness‐of‐fit (external validity) and a test for equality of the parameter estimates for split data (interval validity) are suggested. In addition, statistical tests for the significance of individual parameters on the basis of the information matrix and likelihood ratio tests for one or more parameters are described. The presentation is completed by an empirical example from the area of audiology.
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