16 S-SQUARED OVER D-SQUARED - A RELATION FOR CRUDE SAMPLE-SIZE ESTIMATES

被引：178

作者：

LEHR, R

机构：

[1] Berlex Laboratories, Wayne, New Jersey, 07470

来源：

STATISTICS IN MEDICINE | 1992年 / 11卷 / 08期

关键词：

D O I：

10.1002/sim.4780110811

中图分类号：

Q [生物科学];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

I suggest for memorization an equation for calculating approximate sample size requirements intended only for a specific set of values (80 per cent power for a two-tailed alpha = 0.05 test) which seems to occur often in biopharmaceutical research. After presenting the formula in terms of variance estimate s2 and effect size d, I derive a few alternative forms and then discuss the accuracy of the approximation and other properties as well as examples of its use.

引用

页码：1099 / 1102

页数：4