L.S.,
I have a very simple (perhaps even silly) question: I am interested in doing a meta-analysis using datasets that report means, standard deviations and sample sizes, whereas others report 2x2 tables or proportions and sample sizes. After having calculated effect sizes with the appropriate escalc measure (SMD, RR, etc. respectively), does it make sense at all to combine all these effect sizes into one analysis with rma? My gut feeling is not, but I would like to be sure.
Thanks very much in advance,
Arne Janssen
University of Amsterdam
The Netherlands