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[58] The Funnel Plot is Invalid Because of This Crazy Assumption: r(n,d)=0 - Data Colada
The funnel plot is a beloved meta-analysis tool. It is typically used to answer the question of whether a set of studies exhibits publication bias. That’s a bad question because we always know the answer: it is “obviously yes.” Some researchers publish some null findings, but nobody publishes them all. It is also a bad...