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Hi. 1) Assuming that most are somewhat familiar with football, and that it is world cup time, what do you think of this model to compare differences in distance covered between stages (group stage vs final stage)? lmer(distance ~ stage...

Dear all, Is it possible to add a Prediction interval to each subgroup in a forest plot? I wish to display PI for each level of "BP_threshold", instead of only an overall PI. I tried this with no luck...

Hi All. Can anyone tell me how to add risk of bias to a meta.cont default forest plot, without removing any of the typical information? I was able to add it, but not without removing some other details, which...

Hi all. I am doing a SRMA in which most outcomes have just 4 or 5 studies. One of them has 4 arms (3 with the intervention of interest; 1 with CON). Questions: 1) Would you combine these 3 groups...

Hi everyone. Context: Two groups (A and B) performed 30 treatment sessions. Each session has 4 periods. However, the wo groups did the intervention 6-months apart, with no overlap. The model fit of both models is equal, but theoretically...

Hey everyone. Regarding MLMA, due to shared control group, I wonder if: 1) Is it enough to code "studies/obs" and we are done? res_mlma <- rma.mv(yi, vi, random = ~ 1 | studies/obs, data=dat) 2) Or after that...

Dear everyone, I am going to conduct a randomized crossover study where participants (about 20) are divided into 2 groups due to logistics constraints. The study involves participants performing 4 different exercise modalities (i.e., 4 conditions) in a randomized...

Hi. In medicine's RCTs, with 3 or more time-points, whenever LMMs are used and the code is available, a variation of y ~ time*treatment + (1 | ID) *(M1)* is always used (from what I have seen). Recently I came...

Dear All, Suppose someone is interested in doing equivalence testing in a MA for a subgroup analysis, for example, men vs women. The code used below is from the TOSTER package. *1)* If one is using SMD as the ES...

Hi. Let me know if you need me to provide the data for this example. Screenshots in the bottom. I ran this MA with REML, and the weight for random and common effects are exactly the same! Never saw anything...

Thanks Wolfgang and Reza - I have made some progress, at least. Yes, I am thinking about 3-level MA. Just 2 last points: 1) Is V** supposed to be equivalent to a certain default correlation value in impute_covariance_matrix...

Hi all. I did this to combine studies that provided M+SD, with others for which I had only MD + 95% CI or p-value. *Questions: * i) Is the Vi well calculated below, as the code was given by GPT...

Dear Thierry Onkelin, thanks for the reply. Do you have an opinion about which model best represents the context I have described? That's my main doubt. Thank you. Thierry Onkelinx <thierry.onkelinx at inbo.be> escreveu no dia segunda...

Hi. Many questions! ^^ 1 - When modeling auto-correlation as a function of time (ie, "day") should time also be included as a fixed effect? 2 - If so, is it preferable to model it with or without an interaction with the...

Thank you. :) Viechtbauer, Wolfgang (SP) <wolfgang.viechtbauer at maastrichtuniversity.nl> escreveu no dia ter?a, 31/08/2021 ?(s) 09:57: > >-----Original Message----- > >From: Jorge Teixeira [mailto:jorgemmtteixeira at gmail.com] > >Sent: Tuesday, 31 August, 2021 10:05 > >To: Viechtbauer...

Dear Gerta, perfect! Thank you. Dr. Gerta R?cker <gerta.ruecker at uniklinik-freiburg.de> escreveu no dia segunda, 20/03/2023 ?(s) 21:42: > Hi Jorge, > > you can do this using the arguments rightcols and rightlabs (or leftcols > and...

Thanks Michael. Just to add that: a) yes, those 3 arms can be combined. Neither a perfect, neither a horrible decision.... b) Doing a NMA would not be the best choice as the research question is framed. If I don...

Thank you all for the replies. Still processing them... Indeed, Wolfgang, I was mainly thinking of time as a factor. Although, I welcome comments as if it was numeric as well. Your reply is surprising to me, because in my...

Thank you, Chris. By period I mean the order of the exercise condition within each sequence (aka cycle). Maybe cycle/ period resonates better for you. See fig 1 of Individual responses to topical ibuprofen gel or capsaicin cream for painful...

Dear Michael, thank you - that is indeed more elegant. Out of curiosity, is it possible to do this in ?meta? package too? Michael Dewey <lists at dewey.myzen.co.uk> escreveu no dia segunda, 27/03/2023 ?(s) 13:32...