Search Archives
Search tips
from:Name
Search by author name, e.g. from:Duncan Murdoch
"exact phrase"
Match an exact phrase
word1 word2
Match messages containing both words
Date range
Use the date pickers to filter results to a time period
Use the list dropdown to narrow results to a specific mailing list. Combine from: with other terms to filter by author and content.
Hello, Is it possible to run a meta-analysis using R-square (or R) as an effect size in the same way as you run a meta-analysis using Pearson's r? Specifically, I am interested in which of two...
Why do prediction intervals get so much wider when a multi-level approach is used? Prediction intervals are usually computed by +/- tau*1.96. Obtaining tau is straightforward when doing a random-effects meta-analysis (e.g., function rma() with...
PS: Just realised the table doesn't look like it should be. So I copied in a screenshot of it and uploaded it to a Google Doc, just in case https://docs.google.com/document/d/1xICNhHQ_Te_riYjozG90d6idqvc8-PSSk7eLZkzG2ls...
Hi James, Thank you, this is very useful. Best, Paul From: James Pustejovsky <jepusto at gmail.com> Sent: 07 April 2022 15:23 To: Hanel, Paul H P <p.hanel at essex.ac.uk> Cc: r-sig-meta-analysis at...
Hello, When running a standard random effects meta-analysis with one categorical dichotomous predictor/moderator, the estimate of the moderator is very similar to the difference that you get when running a random effects meta-analysis for each level of...
Dear Wolfgang, Thank you for making it possible to meta-analyse R-square values. Based on your documentation I take you are referring to the standard R-square values, not the adjusted one? By entering the number of predictors mi...
Hi James, Thank you, that is very useful. Your answer makes me however wonder whether there is much point of reporting one prediction interval, since its width seems quite strongly depend on the number of levels. In the example I...
Dear Wolfgang and Michael, Thank you. After also having had a look at the links you provided, I am not sure whether it would be best to focus on the adjusted R-square change or the adjusted R-squares. Focusing...
Hi Wolfgang, I have the adjusted R-square and adjusted R-square change values for both sets of predictors and each DV. Luckily, many researchers were forthcoming and shared their raw data, since only a few papers reported the required...
Hi Wolfgang, Thank you. Sorry, I should have been clearer. I have the raw data for perhaps half of the studies. I take that a meta-analysis would only be possible for the studies for which I have the raw...
Can't find what you're looking for? Try searching with Google .