Hello,

I am running individual FE models where my dep variable (DV) is treated as continuous but it ranges from 0 to 4. The main models have an interaction of a continuous and categorical variable. But before including interactions, I need to test whether there is a linear or nonlinear effect of IV on DV. My IV ranges from 0 to 40. Specifically, I need to test whether there is the same effect when moving in IV from 0 to 5 and moving from 30 to 35. I would appreciate any suggestions on how to do this in fixed effects models and how to make graphs to indicate these relationships! I know that it is problematic that my DV is actually ordinal but in my field most people run linear FE models with such variables. Thanks!!