[R-meta] rma.mv for studies reporting composite of and/or individual subscales
|@w|@wt @end|ng |rom gm@||@com
Wed Nov 24 07:04:06 CET 2021
In my meta-analysis, I've faced two issues.
First issue; each study can measure the same outcome using subscales
reported in the following ways:
(a) Some studies report only separate subscales,
(b) Some studies report only composite of some subscales,
(c) Some studies report both composite of and separate subscales.
Second issue; the same subscales don't quite occur across different
studies (indeed, the number of unique subscales is about the number of
To tackle the first issue, can I include only studies that report
separate subscales from (a) and (c) studies?
To tackle the second issue, can I only rely on the model below (data
structure is below)?
rma.mv(es ~ 1, random = ~ 1 | study / obs, subset = subscale == "subscale")
My data looks like this (please view this in a plain text editor):
study subscale reporting obs
1 A subscale 1
1 A subscale 2
1 B subscale 3
1 B subscale 4
2 A&C composite 5
3 G&H composite 6
4 Z subscale 7
4 T subscale 8
4 Z&T composite 9
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