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Hi, I have a question about, how I can replace or estimate the missing SD values for one extraction or replace missing yi and vi in the database? Does metafor have some function to deal with it? Regards Dylewski -- ?ukasz...

Dear All, I would like to calculate residuals for a random effect. Could I calculate the residual values after subtracting the predicted influence of the study? I would like to get the same residuals value for each study level (in...

Thank you ! W dniu ?r., 11.09.2019 o 09:17 Viechtbauer, Wolfgang (SP) < wolfgang.viechtbauer at maastrichtuniversity.nl> napisa?(a): > Hi Lukas, > > I assume you are after the BLUPs of the random effects. You can obtain > those with the...

Dear Wolfgang , I am working with a meta-analysis in R (metafor package) using a mixed model framework to examine experimental effects of rodent seed predation on plant recruitment as a function of various plant species characteristics. I decided to...

Dear Wolfgang , I am working with a meta-analysis in R (metafor package) using a mixed model framework to examine experimental effects of rodent seed predation on plant recruitment as a function of various plant species characteristics. I decided to...

Dear All, I conducted a mixed meta-regression model to check the effect of drought stress on proline concentration in leaves. In the model, I include the following moderators: duration of drought (in the day), seed mass, and plant type...

Dear Wolfgang, Thank you very much for the answers. Really helped me your tips and codes. Lukasz wt., 30 kwi 2019 o 20:42 Viechtbauer, Wolfgang (SP) < wolfgang.viechtbauer at maastrichtuniversity.nl> napisa?(a): > Dear Lukas, > > You could use the...

Hi James, thank you very much for your help! I checked and I think that proline is measure as a ratio scale. The proline unit is given as ?moles proline / g of the fresh or dry weight of plant material...

Dear James, thank you for quick response ! Here is my response: *1. Measurement properties: what is proline concentration? Is it measured on a ratio scale, such that ROM is a sensible way to describe change (over time or as a...

Hi James, thank you for your advice. They were very helpful ! I will ask other coauthors who work with environmental stress, however, we want to predict effect size for a tree type with average mass and for a drought of...