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A random effects model for ordinal responses from a crossover trial
Author(s) -
Ezzet Farkad,
Whitehead John
Publication year - 1991
Publication title -
statistics in medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.996
H-Index - 183
eISSN - 1097-0258
pISSN - 0277-6715
DOI - 10.1002/sim.4780100611
Subject(s) - crossover , computer science , random effects model , ordinal data , interpretation (philosophy) , simple (philosophy) , ordinal regression , statistics , crossover study , econometrics , mathematics , artificial intelligence , machine learning , medicine , meta analysis , philosophy , epistemology , programming language , alternative medicine , pathology , placebo
Crossover studies have been successfully conducted in the case of continuous responses. Existing procedures of analysis for ordinal responses, on the other hand, are rarely satisfactory unless strict, usually unrealistic, assumptions are made. In this paper we investigate a random effects model and show that the model is simple and general. Interpretation of parameters is easy, though with a complicated fitting procedure.