The abuse of power: The pervasive fallacy of power calculations for data analysis
The abuse of power: The pervasive fallacy of power calculations for data analysis
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DOI：
10.1198/000313001300339897
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发表时间：
2001-02-01
影响因子：
1.8
通讯作者：
Heisey, DM
中科院分区：
文献类型：
--
作者：
Hoenig, JM;Heisey, DM
众所周知，统计功效计算对于规划实验非常有价值。还有大量文献主张，只要对假设进行统计检验并获得统计上不显着的结果，就应进行功效计算。这种实验后功效计算的倡导者声称，这些计算应该用于帮助解释实验结果。这种以各种形式出现的方法从根本上来说是有缺陷的。我们记录了这个问题的广泛性，并提出了论证来证明逻辑上的缺陷。
It is well known that statistical power calculations can be valuable in planning an experiment. There is also a large literature advocating that power calculations be made whenever one performs a statistical test of a hypothesis and one obtains a statistically nonsignificant result. Advocates of such post-experiment power calculations claim the calculations should be used to aid in the interpretation of the experimental results. This approach, which appears in various forms, is fundamentally flawed. We document that the problem is extensive and present arguments to demonstrate the flaw in the logic.