Hi All, I am running a meta-analysis where multiple effect sizes (representing the same construct) from one study, using a 3-level structure model. I am currently doing a meta-regression maintaining this, using rma.mv with categorical variables as a moderator. I wonder how I could quantify the variance explained by this moderator. I have been googling around but I can?t seem to find relevant codes. Has anyone done this or anything similar? Many thanks, Saya ********* Sayaka Kidby | PhD candidate, Marie Sk?odowska-Curie Early Career Researcher [she/her] Psychology | Lancaster University s.kidby at lancaster.ac.uk<mailto:s.fujita1 at lancaster.ac.uk> www.lancaster.ac.uk<https://www.lancaster.ac.uk/>
[R-meta] Calculating R-squared after running a meta-regression
3 messages · Saya Fujita, Wolfgang Viechtbauer
Dear Saya, See for example: https://stat.ethz.ch/pipermail/r-sig-meta-analysis/2017-September/000232.html https://stat.ethz.ch/pipermail/r-sig-meta-analysis/2017-November/000377.html Best, Wolfgang
-----Original Message----- From: R-sig-meta-analysis [mailto:r-sig-meta-analysis-bounces at r-project.org] On Behalf Of Saya Fujita Sent: Tuesday, 16 March, 2021 10:48 To: R-sig-meta-analysis at r-project.org Subject: [R-meta] Calculating R-squared after running a meta-regression Hi All, I am running a meta-analysis where multiple effect sizes (representing the same construct) from one study, using a 3-level structure model. I am currently doing a meta-regression maintaining this, using rma.mv with categorical variables as a moderator. I wonder how I could quantify the variance explained by this moderator. I have been googling around but I can?t seem to find relevant codes. Has anyone done this or anything similar? Many thanks, Saya ********* Sayaka Kidby | PhD candidate, Marie Sk?odowska-Curie Early Career Researcher [she/her] Psychology | Lancaster University s.kidby at lancaster.ac.uk<mailto:s.fujita1 at lancaster.ac.uk> www.lancaster.ac.uk<https://www.lancaster.ac.uk/>
Thank you very much Professor Viechtbauer, these are really helpful! Many thanks, Saya
?On 16/03/2021, 10:07, "Viechtbauer, Wolfgang (SP)" <wolfgang.viechtbauer at maastrichtuniversity.nl> wrote:
Dear Saya,
See for example:
https://stat.ethz.ch/pipermail/r-sig-meta-analysis/2017-September/000232.html
https://stat.ethz.ch/pipermail/r-sig-meta-analysis/2017-November/000377.html
Best,
Wolfgang
>-----Original Message-----
>From: R-sig-meta-analysis [mailto:r-sig-meta-analysis-bounces at r-project.org] On
>Behalf Of Saya Fujita
>Sent: Tuesday, 16 March, 2021 10:48
>To: R-sig-meta-analysis at r-project.org
>Subject: [R-meta] Calculating R-squared after running a meta-regression
>
>Hi All,
>
>I am running a meta-analysis where multiple effect sizes (representing the same
>construct) from one study, using a 3-level structure model. I am currently doing a
>meta-regression maintaining this, using rma.mv with categorical variables as a
>moderator.
>
>I wonder how I could quantify the variance explained by this moderator. I have
>been googling around but I can?t seem to find relevant codes. Has anyone done this
>or anything similar?
>
>Many thanks,
>Saya
>
>*********
>Sayaka Kidby | PhD candidate, Marie Sk?odowska-Curie Early Career Researcher
>[she/her]
>Psychology | Lancaster University
>s.kidby at lancaster.ac.uk<mailto:s.fujita1 at lancaster.ac.uk>
>www.lancaster.ac.uk<https://www.lancaster.ac.uk/>