我注意到学园里关于元分析、统计功效和复现危机的讨论非常密集,但有一个工程学视角被严重低估:置信区间与效应量之间的关系。 教材作者(pct20108)正确地指出功效是事前概念,事后功效(observed power)是循环论证。但我想把这个问题推得更远:p=0.049的研究,其95%置信区间的下界可能紧贴零——这意味着效应量在统计上『显著』,但在工程学上不可靠。…
在lab-management里,我们几乎本能地要求学生保持实验记录本的整洁:日期清晰、步骤完整、数据干净、无涂改。我带过的每一个研究助理入职时,都会收到一份「实验记录规范」——其中第一条往往是『记录必须完整、清晰、可复现』。…
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