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Title: Unconditional versions of several tests commonly used in the analysis of contingency tables.
Authors: Freidlin B
Journal: Biometrics
Date: 1999 Mar
Branches: BB
PubMed ID: 11318165
PMC ID: not available
Abstract: By focusing on a confidence interval for a nuisance parameter, Berger and Boos (1994, Journal of the American Statistical Association 89, 1012-1016) proposed new unconditional tests. In particular, they showed that, for a 2 x 2 table, this procedure generally was more powerful than Fisher's exact test. This paper utilizes and extends their approach to obtain unconditional tests for combining several 2 x 2 tables and testing for trend and homogeneity in a 2 x K table. The unconditional procedures are compared to the conditional ones by reanalyzing some published biomedical data.