[R-meta] Q-Statistic for Between-Subgroup Heterogeneity
@c @ending from imbi@uni-freiburg@de
Mon Jul 16 13:12:44 CEST 2018
Am 13.07.18 um 18:31 schrieb Viechtbauer, Wolfgang (SP):
> In the output, you will find:
> Test of Moderators (coefficients 2:3):
> QM(df = 2) = 1.7675, p-val = 0.4132
> This is the test for between-subgroup heterogeneity.
... assuming a common between-study variance tau2 across subgroups. The
default in metaprop() of meta is to allow different between-study
variances (analogous to RevMan 5, the software for Cochrane Reviews).
However, this can be changed using argument 'tau.common = TRUE' in
As stated by Ty, metaprop() does not allow to specify the weights at the
moment. I put this on my TODO list.
More information about the R-sig-meta-analysis