Effect Sizes for 2×2 Contingency Tables
Effect Sizes for 2×2 Contingency Tables
复制标题
2×2 列联表的效应大小
作者：
J. Olivier;M. Bell
样本量计算是平衡资源使用和避免对参与者造成不必要伤害的研究的重要组成部分。效应大小是这些计算的一个组成部分，研究人员通常不知道有意义的值。对几种常用的统计程序提出了效应大小的一般性建议。对于表格的分析，已经对二进制数据的相关系数提出了建议；然而，众所周知，它的统计特性很差。赔率比不是问题，尽管基于客观推理的建议并不存在。本文提出了以固定边际概率为基础的赔率比建议。这将进一步证明，边际假设可以放宽，从而产生更一般的结果。
Sample size calculations are an important part of research to balance the use of resources and to avoid undue harm to participants. Effect sizes are an integral part of these calculations and meaningful values are often unknown to the researcher. General recommendations for effect sizes have been proposed for several commonly used statistical procedures. For the analysis of tables, recommendations have been given for the correlation coefficient for binary data; however, it is well known that suffers from poor statistical properties. The odds ratio is not problematic, although recommendations based on objective reasoning do not exist. This paper proposes odds ratio recommendations that are anchored to for fixed marginal probabilities. It will further be demonstrated that the marginal assumptions can be relaxed resulting in more general results.
影响因子：
5.9
作者：
Walker, Ian
通讯作者：
Walker, Ian