[R-meta] Meta-analysis including multiple intervention arms

Guido Schwarzer @c @end|ng |rom |mb|@un|-|re|burg@de
Sun Nov 15 15:34:11 CET 2020

Am 14.11.20 um 16:29 schrieb James Pustejovsky:

> [...] Splitting the control sample size would over-correct, so that the study would end up with less weight than it should receive.

Is this also true if you have a (very) large between-study variance?

In such cases each estimate gets essentially the same weight in a 
meta-analysis which means that a study with two estimates gets twice the 
weight (not sure about this relationsship if using RVE).

Best wishes

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