SPSS Mixed Help

Posted by psychresearcher on Feb 25, 2014; 4:14am
URL: http://spssx-discussion.165.s1.nabble.com/SPSS-Mixed-Help-tp5724617.html

Hi all,

I am having trouble building my model properly, and I was hoping I could get some advice here.

I have a 2 (S: P vs. D) x 3 (ET: CA vs. CO vs. AD) between-subjects design. Participants were run in pairs (one P was always matched to one D and they were in the same ET condition), so I know I need to nest by pairs. Participants then completed the same measure - CR - at times 1, 2, and 3. I restructured my data set into long form, so I also have a T (time) variable in addition to Pr (pair), and ID (participant ID) variables as well. I also dummy coded ET into ET1 and ET2 if it is necessary for this to come out correctly.

I have been trying to build a model using SPSS Mixed, but something feels off. Can someone give me an example of the syntax I would need to test this model? I do need to be able to assess the interaction between S and ET, and I want to test whether the model works between w/ or w/o random intercept +/or slopes. Any help would be much appreciated!