[R-meta] question on multilevel model results

[Gabriel Cotlier]

Dear Lukasz,
Thank you very much for the useful information and links.
Kind regards,
Gabriel

On Thu, Jul 27, 2023 at 1:27 PM Lukasz Stasielowicz <
lukasz.stasielowicz using uni-osnabrueck.de> wrote:

> Dear Gabriel,
>
> The sigma values in the rma.mv output can be interpreted as tau values.
> Take a look at the examples at the bottom:
> https://wviechtb.github.io/metafor/reference/rma.mv.html
> Based on the sigma values, one can estimate other measures.
>
> There was recently a question about estimating I2 and R2, so I will link
> to the answer:
> https://stat.ethz.ch/pipermail/r-sig-meta-analysis/2023-July/004832.html
>
>
>
> Best,
> Lukasz
> --
> Lukasz Stasielowicz
> Osnabrück University
> Institute for Psychology
> Research methods, psychological assessment, and evaluation
> Lise-Meitner-Straße 3
> 49076 Osnabrück (Germany)
> Twitter: https://twitter.com/l_stasielowicz
>
> On 27.07.2023 12:00, r-sig-meta-analysis-request using r-project.org wrote:
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> >     1. question on multilevel model results (Gabriel Cotlier)
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> > ----------------------------------------------------------------------
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> > Message: 1
> > Date: Thu, 27 Jul 2023 10:18:12 +0300
> > From: Gabriel Cotlier <gabiklm01 using gmail.com>
> > To: R Special Interest Group for Meta-Analysis
> >       <r-sig-meta-analysis using r-project.org>
> > Subject: [R-meta] question on multilevel model results
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> CAAKwTDGJE3wuWj_E7wcCWyVs4m34pxzaaAuMQ_KEd89Aoqt7GQ using mail.gmail.com>
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> >
> > Hello all,
> >
> > I would like to ask why, conversely, rma() objects for rma.mv() objects
> > (with and without moderators ) in the summary report do not provide
> values
> > of heterogeneity measures besides Cohen's *Q* such as "tau/hat/ square"
> or
> > "tau/square" or H^2?
> >
> > Is this maybe because this type of model (rma.mv()) does not allow the
> > estimation of these measures?
> >
> > Alternately, could they be calculated separately for rma.mv() objects?
> > If so, is there a code for doing this ?
> >
> > Thanks a lot.
> > Kind regards,
> > Gabriel
> >
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