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<p class="MsoNormal"><span style="font-size:11.0pt">Dear All, <br>
<br>
I am conducting a 3-level multi-analysis, following this Bookdown. <br>
https://bookdown.org/MathiasHarrer/Doing_Meta_Analysis_in_R/mlma.html<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt"><br>
I would like to run some sub-group analyses under this 3 level structure, and I can see in this bookdown (chapter 12.1) that if I use rma.mv function in metafor,
</span><span style="font-size:11.0pt">we need to create two variables/columns for each subgroup level. In the example in this book down, the number of sub-groups was two: peer-review, dissertation, so it makes sense that they coded 1 (yes) or 0 (no).
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">In my data I have more than two subgroups, and I wonder how I should input the data. I thought, if I have 4 subgroups for instance, I’d create 4 columns and code 0 or 1 in each column, but that would group
3 different levels as 0 in one column, and specifying one variable/column as a moderator in rma.mv using the mods parameter would compare one subgroup with the other three subgroups – which is not what I want to do. Hope this makes sense!<br>
<br>
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">I wonder if anyone here has done a subgroup analysis for multiple subgroup comparisons, maintaining the 3 level structure of a multi-level meta-analysis? Could I ask how you did the analysis?
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Thank you very much in advance, and I apologise if it’s a very simple/naïve question!
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Many thanks,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Saya<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:black">*********<o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;color:black">Sayaka Kidby (Fujita)<span style="background:white">| PhD candidate,
</span>Marie Skłodowska-Curie Early Career Researcher <span style="background:white">
[she/her]</span><o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#555656;background:white">Psychology | Lancaster University<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:black"><a href="mailto:s.fujita1@lancaster.ac.uk"><span style="color:#954F72">s.kidby@lancaster.ac.uk</span></a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><a href="https://www.lancaster.ac.uk/"><span style="color:#555656;background:white;text-decoration:none">www.lancaster.ac.uk</span></a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:black"><o:p> </o:p></span></p>
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<i><span style="font-size:11.0pt">Please note: I have a flexible working week so often I may email during evenings and weekends. However I do not expect responses during these times.<o:p></o:p></span></i></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;color:#555656"><br>
</span><a href="https://www.lancaster.ac.uk/"><span style="font-size:11.0pt;color:#B5121B;background:white;text-decoration:none"><img border="0" width="230" height="74" style="width:2.3958in;height:.7708in" id="Picture_x0020_6" alt="Lancaster University" data-outlook-trace="F:0|T:1" src="cid:image001.png@01D718E6.13BFCA80"></span></a><span style="font-size:11.0pt;color:#555656"><br>
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<p class="MsoNormal"><span style="font-size:11.0pt;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;color:black"> </span></b><span style="font-size:11.0pt;color:black">Follow
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<p class="MsoNormal"><b><span style="font-size:11.0pt;color:black">MOTION – Developing natural and child-friendly research and testing<o:p></o:p></span></b></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;color:black">Interested? Visit
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