I am trying to find a way to do a mediation analysis between a within-subjects IV and a DV.
I have found the Baron and Kenny approach and path analysis, but I am guessing both apply for a between-subjects design. I have also found a paper discussing a within-subject mediation analysis using R, but I was wondering whether there is a way to test this through SPSS.
Does anyone know whether this can happen? I am quite new at statistics so please explain as simple as possible..