Topic: Residual and Assumption Diagnostics

Residuals Against a Continuous Predictor

Reporting Residual Diagnostic Evidence

Least-Squares Constraints on Residuals

Isolated Residuals Versus Systematic Patterns

Interpreting Departures in Normal Quantile Plots

How Sample Size Changes Residual Plot Reading

Fan Shapes and Changing Residual Spread

Distinguishing Curvature from Unequal Spread

Curvature in Residual-Versus-Fitted Plots

Constructing a Normal Quantile Plot