Statistical inference for a ratio of dispersions using paired samples

被引：6

作者：

Bonett, DG ^{[1
]}

Seier, E

机构：

[1] Iowa State Univ, Dept Stat, Ames, IA 50011 USA

[2] E Tennessee State Univ, Johnson City, TN 37614 USA

来源：

JOURNAL OF EDUCATIONAL AND BEHAVIORAL STATISTICS | 2003年 / 28卷 / 01期

关键词：

Box-Scheffe test; directional two-sided hypothesis; finite-interval hypothesis; matched-pairs designs; mean absolute deviation from median; Morgan-Pitman test; repeated-measures designs; variability; within-subjects designs;

D O I：

10.3102/10769986028001021

中图分类号：

G40 [教育学];

学科分类号：

040101 ; 120403 ;

摘要：

Wilcox (1990) examined the Type I and Type II error rates for several robust tests of H-0: sigma(1)(2)/sigma(2)(2) = 1 in paired-data designs and concluded that a satisfactory solution does not yet exist. A confidence interval for a ratio of correlated mean absolute deviations is derived and performs well in small sample sizes across realistically nonnormal distributions. When used to test a hypothesis, the proposed confidence interval is almost as powerful as the most powerful test examined by Wilcox.

引用

页码：21 / 30

页数：10

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