Funnel plot: Difference between revisions

Revision as of 01:56, 17 November 2011

Revision as of 05:40, 28 February 2012

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== Criticism ==

The funnel plot is not without problems.

If high precision studies really are different than low precision studies with respect to [[effect size]] (e.g., due to different populations examined) a funnel plot may give a wrong impression of publication bias.<ref>{{Cite journal

| author = [[Joseph Lau]], [[John P. A. Ioannidis]], [[Norma Terrin]], [[Christopher H. Schmid]] & [[Ingram Olkin]]

| title = The case of the misleading funnel plot