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Description:
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Sample size calculation methods for ordinal logistic regression are proposed to test statistical hypotheses . The author was motivated to do this work by the need for statistical analysis of the red imported & #64257 ;re ants data . The proposed methods use the concept of approximation by the moment -generating function . Some correction methods are also suggested . When a prior data set is available , an empirical method is explored . Application of the proposed methodology to the & #64257 ;re ant mating & #64258 ;ight data is demonstrated . The proposed sample size and power calculation methods are applied in the hypothesis testing problems . Simulation studies are also conducted to illustrate their performance and to compare them with existing methods . |