Im carrying out a meta-analysis where I have had to carry out my own wilcoxon test on the data. I am now calculating the independant effect sizes for each study to manually input to my excel spreadsheet.
When I have carried out my Wilcoxon test this is my input:
rear<-read.csv(file.choose()) names(rear) shapiro.test(rear$PI) wilcox.test(rear$PI~rear$ï..RearingCond)
and my output just provides W = 82, p-value = 0.26
how do i now calculate my effect size and variances for this?