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An alternative property for evaluating sample size for normal data using preliminary data

Clinical Trials

Impact Factor: 2.2 / 5-Year Impact Factor: 2.3

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Letter

First published online December, 2013

An alternative property for evaluating sample size for normal data using preliminary data

Volume 10, Issue 6

https://doi.org/10.1177/1740774513506965

Abstract

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References

Chen

Zhang

Chen

. Caution regarding the choice of standard deviations to guide sample size calculations in clinical trials. Clin Trials2013; 10: 522–29.

Fay

Halloran

Follman

. Accounting for variability in sample size estimation with applications to nonadherence and estimation of variance and effect size. Biometrics2007; 63: 465–74.

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