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- W2084387343 abstract "The determination of sample sizes for the comparison of k treatments against a control by means of the test of Dunnett (1955, 1964) as well as by means of the multiple t-test will be considered. The power in multiple comparisons can be defined in different ways, see Hochberg and Tamhane (1987). We will derive formulas for the per-pair power, the any-pair power and the all-pairs power for both one- and two-sided comparisons. Tables will be provided that allow sample sizes to be determined for preassigned values of the power. Es wird die Ermittlung von Stichprobenumfängen für den Vergleich von k Behandlungen gegen eine Kontrolle mit dem Dunnett-Test sowie mit dem multiplen t-Test behandelt. Wie bei anderen multiplen Tests, läßt sich die Power auf unterschiedliche Weise definieren, s. Hochberg and Tamhane (1987). Wir leiten Formeln der per-pair power, der any-pair power und der all-pairs power für ein- und zweiseitige Vergleiche her. Es werden Tabellen geliefert, aus denen die Stichprobenumfänge zu vorgegebener Power ermittelt werden können." @default.
- W2084387343 created "2016-06-24" @default.
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- W2084387343 date "1998-09-01" @default.
- W2084387343 modified "2023-10-17" @default.
- W2084387343 title "Sample Sizes for Comparisons ofk Treatments with a Control Based on Different Definitions of the Power" @default.
- W2084387343 doi "https://doi.org/10.1002/(sici)1521-4036(199809)40:5<589::aid-bimj589>3.0.co;2-8" @default.
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