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Abstract

Title: Unconditional versions of several tests commonly used in the analysis of contingency tables.
Author: Freidlin B, Gastwirth JL
Journal: Biometrics 55(1):264-267
Year: 1999
Month: March

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.