共 3 条
- [1] Cochran W.G, 1957, STAT METHODS, V6th ed
- [2] Fleiss JL., 1981, STAT METHODS RATES P, V2
- [3] Woolson R. F, 1987, STATISTICAL METHODS
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
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.
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页码：1099 / 1102
页数：4
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