Generalized cochran-mantel-haenszel test statistics for correlated categorical data |
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Authors: | Jie Zhang Dennis D Boos |
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Institution: | 1. Abbott Laboratories , D436, AP9A 100 Abbott Park Road, Abbott Park, IL, 60064;2. Department of Statistics , North Carolina State University , Raleigh, NC, 27695-8203 |
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Abstract: | Three new test statistics are introduced for correlated categorical data in stratified R×C tables. They are similar in form to the standard generalized Cochran-Mantel-Haenszel statistics but modified to handle correlated outcomes. Two of these statistics are asymptotically valid in both many-strata (sparse data) and large-strata limiting models. The third one is designed specifically for the many-strata case but is valid even with a small number of strata. This latter statistic is also appropriate when strata are assumed to be random. |
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Keywords: | Hotelling's T 2 Multicenter clinical trials Sparse data Strata |
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