To all experts
I am trying to investigate the interaction effect between the 2 independent variables using FFX since I still lacking sufficient sample for RFX analysis. My first factor consists of 5 levels while my 2nd factor consists of 2 levels. When I tried to run it, the feedback from matlab said my factor doesn't match with the condition. Based on my understanding, it probably telling me I must set each subject to have 10 conditions (5 x 2= 10) in order to proceed. The problem is one of my factors is a subject variable. It is impossible to have 10 conditions for each subject in my case.
Does anyone know how to solve this problem?
Any help will be appreciated. Thanks in advance.
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