266a3862_art_III___Stats_With_Cats_Blog__Identification
[Your Model] Heteroscedasticity [Correction] Try to find an appropriate Box-Cox transformation or consider nonparametric regression or data mining methods. [Identification] 
Plot the variance at each level of an ordinal-scale dependent variable or appropriate ranges of a continuous-scale dependent variable. Look for any differences in the variances of more than about five times.
Regression Fantasies: Part III | Stats With Cats Blog
Identification