SAMPLE-SIZE AND STATISTICAL POWER IN REPRODUCTIVE RESEARCH

被引：14

作者：

PEIPERT, JF ^{[1
]}

METHENY, WP ^{[1
]}

SCHULZ, K ^{[1
]}

机构：

[1] CTR DIS CONTROL & PREVENT,ATLANTA,GA 30341

来源：

OBSTETRICS AND GYNECOLOGY | 1995年 / 86卷 / 02期

关键词：

D O I：

10.1016/0029-7844(95)00104-Y

中图分类号：

R71 [妇产科学];

学科分类号：

100211 ;

摘要：

The calculation of sample size should be an integral pare of the planning stages of all research projects to avoid wasting time, money, and valuable resources. The necessary information for sample size calculations includes the alpha (type I) error level, the beta (type II) error, delta (or the difference you would like to be able to detect), and, for continuous variables, the variance. We review these terms and outline their importance in the calculation of sample size and statistical power. When necessary, the investigator should seek expertise and advice to perform these calculations.

引用

页码：302 / 305

页数：4

共 20 条

[1] MEDICINE AND MATHEMATICS - STATISTICS AND ETHICS IN MEDICAL-RESEARCH .3. HOW LARGE A SAMPLE [J].