"Dear Mike and other users,
I am encountering the same problem. I have a smaller sample of 15 studies with a 5-variable matrix (1 binary variable, 4 continuous variables), but all 15 studies contribute data to every cell. Every study matrix is…"
Thanks for letting us know that there are no simple or clear guidelines. I guess we just have to make a decision now based on what is practical for extracting data from studies, and then later use a trial-and-error approach to reduce…"