Constructing a funnel plot will assist in determining how many studies with what type of results to reverse the conclusion of a significant finding?

Question

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A funnel plot is a tool used in meta-analyses and systematic reviews to detect bias or heterogeneity among study results. It plots the effect sizes from individual studies against some measure of each study's size or precision. If there is publication bias, small studies with nonsignificant results might be missing from the literature, causing asymmetry in the funnel plot. Thus, identifying how many studies with nonsignificant results would be needed to reverse a significant finding can be facilitated by constructing and analyzing a funnel plot.

Constructing a Funnel Plot Will Assist in Determining How Many