[R-meta] Response Ratios in nested studies

[Farzad Keyhan]

Hello All,

I recently came across a post
(https://stat.ethz.ch/pipermail/r-sig-meta-analysis/2021-October/003330.html)
that discussed an issue that is relevant to my meta-analysis.

In short, if some studies have nested structures, and the effect size
of interest is log response ratio (LRR), is there a way to adjust the
sampling variances (below) before modeling the effect sizes?

vi = sd1i^2/(n1i*m1i^2) + sd2i^2/(n2i*m2i^2)

Thank you,
Fred