I am trying to analyze a model on SPSS with:
- one within-subject factor with 2 levels.
- two between-subject factors: one categorical (2 levels) and another continuous.
- also, we are hypothesizing an interaction term between the two (the categorical and the continuous variables) between-subject factors.
I am having a hard time running the model on SPSS. I have found recommendations with similar problems asking to run a nested model (not sure how to run that on SPSS). However, I am not sure what model to run and how to run it on SPSS.