I am buidling a heirchical linear model for nested data: level 1 student, level 2 teacher, level 3 school. I am interested in controlling for school and student contexts and get at teacher effect.
This is how I built the mdel:
In fit model, I used standard least squares as the personality, and assigned school (i. e. school name) and student variables (i. e. student gender, ethnicity and lunch status) fixed effect, while teacher and teacher interaction with student variables as random effect. This way I get BLUP as teacher effect.
My question is: is the random effect random intercept or random slope?
P. S. I assigned random by selecting "random" in the attribute dropdown menu.
I have been trying to find answer to this question for days. Really appreciate your help!