CODEWITHSUNDEEP
rmetafor
user8460166
user8460166

Reputation: 183

Does the metafor package report adjusted R^2 or just normal R^2?

I am conducting a meta-analysis using the metafor package in R. Comparing models using anova() function, I can see the R^2. 

fit1 <- rma(data = dat, yi, vi, mods = fix1)
fit2 <- rma(data = dat, yi, vi, mods = fix1 + fix2)
anova(fit1, fit2)

Is this adjusted R-square or just a normal R-square? Thank you.

Upvotes: 0

Views: 519

Answers (1)

Amar
Amar

Reputation: 1373

Please read the documentation provided in the metafor package. https://cran.r-project.org/web/packages/metafor/metafor.pdf

For the function anova.rma:

R2

amount of (residual) heterogeneity in the reduced model that is accounted for in the full model (in percent). NA for fixed-effects models, if the amount of heterogeneity in the reduced model is equal to zero, or for "rma.mv" objects. This can be regarded as a pseudo R2 statistic (Raudenbush, 2009). Note that the value may not be very accurate unless k is large (Lopez-Lopez et al., 2014).

Upvotes: 2

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