Recall the GLM Univariate dialog box.
Select Store ID
as the random factor.
Click Model.
Select Custom as the model type.
Select shopfor(F) and
usecoup(F) in the Factors
and Covariates list.
Select Main effects from the
Build Term(s) drop-down list and select the main effects to the model.
Select shopfor(F) and
usecoup(F) in the Factors
and Covariates list.
Select Interaction from the
Build Term(s) drop-down list and select the interaction term to the model.
Select storeid(R) in the Factors
and Covariates list and select it to the model.
Click Continue.
Click OK in the
GLM Univariate dialog box.