Hi On Thu, 05 Apr 2007 14:49:28 -0700, Annete Taylor wrote: >First of all, I am running a mixed ANOVA with one repeated >measures variable with 5 levels and one between measures variables >with 2 levels. I wanted to run planned comparisons but SPSS 12 >won't let me. It tells me that I need at least 3 groups and that I >don't have three groups. Can someone explain this to me and >tell how to run my analysis?
It would be helpful if you were specific about what planned comparisons you had in mind. Were they of the main effect for the repeated measures factor? Simple effects? Partitioning the interaction? SPSS will allow you to do pretty much whatever meaningful planned comparisons you want. >Second, SPSS has several (about 12) different planned >comparisons I can run. I know that some are more conservative >and some less conservative, but how does one decide >between so very many which ones to run? I believe you are thinking about the post hoc procedures, not planned comparisons. Take care Jim James M. Clark Professor of Psychology 204-786-9757 204-774-4134 Fax [EMAIL PROTECTED] --- To make changes to your subscription go to: http://acsun.frostburg.edu/cgi-bin/lyris.pl?enter=tips&text_mode=0&lang=english
