Some results on step-up tests for comparing treatments with a control in unbalanced one-way layouts.


Liu, Wei (1997) Some results on step-up tests for comparing treatments with a control in unbalanced one-way layouts. Biometrics, 53, (4), 1508-1512.

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Description/Abstract

The basic problem is to compare several treatments with a control in the standard unbalanced one-way layouts. Step-up tests were considered by Dunnett and Tamhane (1995, Biometrics 51, 217-227). In this paper, a method of calculating the critical values of step-up tests is proposed so that the Type I familywise error (FWE) is controlled at a prespecified level α. It is also pointed out that the equivalence of a step-up test and the test based on the correspondingly adjusted p-values requires implicitly a monotone property. A practical example is used for illustration.

Item Type: Article
ISSNs: 0006-341X (print)
Related URLs:
Subjects: Q Science > QA Mathematics
Divisions: University Structure - Pre August 2011 > School of Mathematics > Statistics
ePrint ID: 30093
Date Deposited: 14 Mar 2007
Last Modified: 27 Mar 2014 18:18
URI: http://eprints.soton.ac.uk/id/eprint/30093

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