Previously, I conducted a model like the following. I have repeated measures (Time factor: pre-post) of depressive mood in two different groups (Group factor: neutral and experimental). Each participant in only one group. I checked the Coping as a moderator.
lmer(DepressiveMood ~ Coping*Time*Group + (1|ID), data = data)
Currently, I created 3 Levels among the participants based on their pre-depressive mood scores as a low, average, and high depressive mood. So, the difference can be more sizeable. However, I could not create the model. Is this following model correct? My question is individuals in three different levels of depressive mood (Level factor) are different?
lmer(DepressiveMood ~ Coping*Time*Group + (1|Level|ID), data = data)