ADJUSTED P-VALUES FOR SIMULTANEOUS INFERENCE

被引:854
作者
WRIGHT, SP
机构
[1] Statistics Department, University of Tennessee, Knoxville
关键词
MULTIPLE COMPARISONS; P-VALUES; SIMULTANEOUS INFERENCE;
D O I
10.2307/2532694
中图分类号
Q [生物科学];
学科分类号
07 ; 0710 ; 09 ;
摘要
This paper proposes that results from simultaneous tests be reported as adjusted P-values such that, if the adjusted P-value for an individual hypothesis is less than the chosen significance level of alpha, then the hypothesis is rejected with an experimentwise error rate of no more than alpha. Examples are given of adjusted P-values for multiple comparisons in the analysis of variance and of adjusted P-values based on the Bonferroni procedure and modifications of that procedure by Holm (1 979, Scandinavian Journal of Statistics 6, 65-70), Hochberg (1988, Biometrika 75, 800-802), and Hommel (1988, Biometrika 75, 383-386). The modified Bonferroni-based procedures are much more powerful than the original Bonferroni procedure, and they deserve wider use. In addition to the above, a procedure is outlined for obtaining adjusted P-values for any closed test procedure.
引用
收藏
页码:1005 / 1013
页数:9
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