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Hey James, Thanks so much for the detailed response.

Dear Wolfgang and R-sig-meta-analysis community, I would like to see if I can pick your thoughts about an approach I am using in my current meta-analysis research. We are conducting a meta-analysis on a range...

Dear Wolfgang, Yes, indeed. It's a computation of a number formed from the original within or between individuals SD. Therefore, I assume (as Fernando suggested) that the most reasonable method to choose is the log of the SD with...

Dear Wolfgang and Fernando, Apologise for the multiple emails, but I just figured out that my last questions were probably unnecessary.. After I read this ?measures for quantitative variables? section? https://wviechtb.github.io/metafor/reference/escalc.html I finally...

Dear Wolfgang and Fernando, Woflgang, thanks for letting me know.. Fernando, thanks for your answer, I wanted to have some time working with "SDLN" function you suggested before commenting again. I'm familiar with those papers that investigated SEM, thanks...

Hey Michael, Thanks for your answer and suggestion.. Unfortunately, a binary analysis does not fit our research question since we are not interested if a running speed threshold was achieved, but more about how much distance was covered in the...

Dear Wolfgang and James, Apologise for the long assay in advance.. In my meta-analysis I obtained different effect sizes coming from test-retest and correlational designs. Accordingly, I performed 4 different meta-analyses for each effect size: Raw mean...

Dear Wolfgang, Thanks for your quick reply and sorry in advance for the long ?assay?.. It is probably be better if I give an overview on my analysis. Generally, I employ meta-analysis on the reliability and validity of heart...

Hi James, My apologies for the late response to your message. I preferred to take the time to read and dive into the possible approaches you proposed rather than responding without trying anything. I have tried to explore previous examples...

Hi everyone, I wonder if someone would be kind and able to provide guidance/suggestions on a stats issue that myself and colleagues are trying to handle while performing a meta-analysis. We are interested in the outcomes extracted from...

Hi James, Thank you so much for the response and further explanations around the merits associated with V-matrices in correlated datasets. I think that both you and Wolfgang have already provided a thorough insight on this in previous threads...

Hi R legends! My name is Tzlil and I'm a PhD candidate in Sport Science - Human performance science and sports analytics I'm currently working on a multilevel meta-analysis using the metafor package. My first question is around...

Dear Wolfgang, James and the team.. Me and colleagues are currently conducting a meta-analysis in the area of sports. In our analysis, we meta-analyse the exposure of high-speed running and sprinting in variations of games during football...

Dear Wolfgang, First, thank you so much for the quick response and the time you dedicate to my questions. And yes, I looked on the mailing list and have seen some meaningful discussions around some of my questions. Based on...

Hi James, That's great! Here is a small example using dput() (I hope that is what you meant to). I also added two of my moderators that if someone can provide the syntax for the overall average effect (without...

Hi james, Thank you for the reply.. To your questions and by the way of trying to make it more understandable. We are interested in the estimates of meterage covered (group mean and SD ? expressed as meter/min) during different...

Dear Wolfgang and all the colleagues in the group. I have a question regarding my interpretation of my meta-regression analysis. For making it easier for you to get a full insight of my questions, I attached part of my...