The Size of the Cochran-Armitage Trend Test in 2 X C Contingency Tables: Two Multinomial Distribution Case

Title & Authors
The Size of the Cochran-Armitage Trend Test in 2 X C Contingency Tables: Two Multinomial Distribution Case
Kang, Seung-Ho; Ahn, Sun-Young;

Abstract
In this paper we show that the peak of the type I error rate of the Oochran-Armitage trend test could be greater than the nominal level when $\small{2\;{\times}\;C}$ contingency tables obtained from two multinomial distributions are extremely unbalanced. This result justifies the use of the exact Cochran-Armitage trend test in extremely unbalanced $\small{2\;{\times}\;C}$ contingency tables.
Keywords
Imbalance;type I error;exact test;
Language
English
Cited by
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