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Approximately Optimal One-Parameter Boundaries for Group Sequential Trials

Samuel K. Wang and Anastasios A. Tsiatis
Biometrics
Vol. 43, No. 1 (Mar., 1987), pp. 193-199
DOI: 10.2307/2531959
Stable URL: http://www.jstor.org/stable/2531959
Page Count: 7
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Approximately Optimal One-Parameter Boundaries for Group Sequential Trials
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Abstract

We present a class of group sequential tests, indexed by a single parameter, that yields approximately optimal results. We also provide tables of key values to help in the design of group sequential tests that meet selected specifications.

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