期刊名称：Journal of Modern Applied Statistical Methods
出版年度：2007
卷号：6
期号：1
页码：12
出版社：Wayne State University
摘要：Several tests for group mean equality have been suggested for analyzing nonnormal and heteroscedastic data. A Monte Carlo study compared the Welch tests on ranked data and heterogeneous, nonparametric statistics with previously recommended procedures. Type I error rates for the Welch tests on ranks and the heterogeneous, nonparametric statistics were well controlled with a slight power advantage for the Welch tests on ranks.
关键词：Welch test on ranks; nonparametric statistics; nonnormality; hertoscedasticity; mean equality
