[R-meta] Weighted r values in a meta-analysis
Oliver Clark
oliver.clark3 at stu.mmu.ac.uk
Mon Aug 14 17:14:08 CEST 2017
Hi all,
I was wondering if anyone could think of a situation in which individual Pearson’s Rho values would be weighted by sample size in a meta-analysis?
If so, what the equation for doing so would be?
I am trying to reproduce a published meta-analysis and rw[i] values are given, but the equation and justification are not.
My guess was (r[i] * n[i]) / (mean(n[k]) but the numbers were different, and in fact gave r > 1.
Many thanks!
Oliver
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