You can test this assumption in PROC GLM by using the HOVTEST option in the MEANS statement, requesting a homogeneity of variance test. This section discusses the computational details behind these ...

These assumptions, which can vary depending on the model, include normality, homogeneity of variance, independence, and linearity, among others. Violating these assumptions can lead to biased or ...

Levene's test of homogeneity is particularly appropriate for short run ... You can implement Levene's method by using the GLM procedure to construct a one-way analysis of variance for the absolute ...