[R-meta] Moderators: Center then separate or vice versa

Farzad Keyhan |@keyh@n|h@ @end|ng |rom gm@||@com
Fri Dec 17 03:50:25 CET 2021

Hello All,

(1) I want to center my continuous *time* moderator (*time* -->
*time_c*) so as to make my intercept meaningful.

(2) Because *time* varies both within and between studies, I want to
separate the within (*time_within*) and between part of time

I was wondering if I could do both these steps together? If yes,
should I first do (1) and then do (2) or vice versa?

Have a blessed weekend,

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