COMMUNICATIONS IN STATISTICS-THEORY AND METHODS, cilt.46, ss.9566-9590, 2017 (SCI-Expanded)
Double outward box distributed residuals are another type of non monotonic heteroscedasticity that severely violates homoscedasticity assumption. In this study Celik's (2015) WCEV is applied to double outward box distributed residuals to provide homoscedasticity for simple and multiple regression models.