Japanese Journal of Biometrics
Online ISSN : 2185-6494
Print ISSN : 0918-4430
ISSN-L : 0918-4430
Original Article
Closed Testing Procedures for Pairwise Comparisons in Multi-Sample Models
Taka-aki Shiraishi
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2011 Volume 32 Issue 1 Pages 33-47

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Abstract
Under the assumptions of the continuous distribution and equality of variance, we consider multiple comparisons tests for the differences among mean responses in k samples. Closed testing procedures are superior to the Tukey-Kramar type multiple tests which are single-step procedures in many cases. The closed testing procedure more powerful than the Tukey-Welsch test and the REGW test is proposed under the usual normality. Furthermore the nonparametric closed testing procedure is discussed based on ranks. Last the proposed nonparametric closed testing procedure is illustrated with data regarding sarcoidosis from the assay of serum angiotensin-converting enzyme (SACE).
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© 2011 The Biometric Society of Japan
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