-----Original Message-----
From: R-sig-meta-analysis [mailto:r-sig-meta-analysis-bounces at r-project.org] On
Behalf Of Hooren, Bas van (VBW)
Sent: Thursday, 27 January, 2022 17:02
To: r-sig-meta-analysis at r-project.org
Subject: [R-meta] Back transforming Z to r after meta-analysis
Dear,
Currently I am performing a meta-analysis of correlations. I first transform
these correlations to Fishers'z using metafor, but for interpretation I would
like to back-transform the Z to r. I have read a few papers by Adam Hafdahl where
he shows that a direct back-transformation as suggested by e.g. Borenstein can
lead to errors and would therefore like to use the method he proposed for back-
transforming Z to r (e.g.
https://bpspsychub.onlinelibrary.wiley.com/doi/full/10.1348/000711009X431914?).
I did not find any information on the implementation of any back-transformation
methods and am wondering if any you know if there is an R-script that implements
these transformations. Note: I have emailed the author (Adam) and he also was not
aware of any implementation in R.
Groeten/Kind Regards,
Bas Van Hooren, PhD(c) | Nutrition and Movement Sciences | T: +31 6 51643957 | E:
basvanhooren at hotmail.com | Twitter: @BasVanHooren