The problem of testing equality of two independent binomial proportions is reexamined. A recent article by D’Agostino, Chase, and Belanger (1988) argues that the Fisher exact test and the Yates chi-squared test with continuity correction are much too conservative in small samples. The authors proposed using a studentized version of the Pearson chi-squared test, and… Continue reading Testing the equality of two independent binomial proportions. (response to recent article by R.B. D’Agostino, W. Chase, and A. Belanger)