A simple method of sample size calculation for unequal‐sample‐size designs that use the logrank or t‐test
- 1 July 1987
- journal article
- research article
- Published by Wiley in Statistics in Medicine
- Vol. 6 (5) , 577-581
- https://doi.org/10.1002/sim.4780060506
Abstract
This paper presents a simple method of calculating sample sizes for unequal-sample-size designs with use of published tables applicable to equal-sample-size designs. The method applies to both the logrank test and the t-test. For the power of logrank test, this paper compares the proposed method with existing methods and with the Monte Carlo simulation.Keywords
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