论文标题
COPAS的方法对出版偏见的不同机制敏感
Copas' method is sensitive to different mechanisms of publication bias
论文作者
论文摘要
COPAS的方法从汇总的数据荟萃分析中纠正了汇总估计值，以解决出版偏差。已经研究了它的一种特定出版偏见机制。我们通过模拟表明，COPAS的方法对其他现实机制并不强大。这疑问COPA方法的有用性，因为在实践中通常未知出版偏见机制。
Copas' method corrects a pooled estimate from an aggregated data meta-analysis for publication bias. Its performance has been studied for one particular mechanism of publication bias. We show through simulations that Copas' method is not robust against other realistic mechanisms. This questions the usefulness of Copas' method, since publication bias mechanisms are typically unknown in practice.
