The standardized residual can help you detect outliers. Standardizing residuals is useful because raw residuals might hinder your ability to identify outliers if they have non-constant variance.

This is a preview. Log in through your library . Abstract In this paper, we propose a unified approach to generating standardized-residuals-based correlation tests for checking GARCH-type models. This ...

Similar bounds hold for standardized and internally studentized residuals in regression analysis. The implications of these bounds for outlier identification in regression do not appear to be widely ...