I've got a mixture of parametric and non-parametric data, with a repeated measures design; measuring animal behaviour in three different treatments. For parametric data, it's simple enough calculating mean difference and 95% confidence intervals. I also want to do the same for the medians of non-parametric data.
For non-parametric data, when looking at differences between treatments I have used Wilcoxon matched-pair signed rank tests. My question is, is there a way to calculate median differences between two treatments +95% confidence intervals for the difference? If not, I've read this page - would the method suggested by Pallant, J. (2007) be a suitable alternative?