Topic: Units, Scaling, and Centering

Worked Unit Conversion and Standardization Problems

Worked Centering Problems With Interactions

Why Centering Leaves Additive Slopes Unchanged

When the Centered Intercept Equals the Mean Outcome

Standard Errors and Tests After Rescaling

Standardizing Predictors to Standard Deviation Units

Standardizing the Outcome and Predictors

Rescaling the Outcome and Its Coefficients

Interpreting the Intercept at Zero

Dimensional Analysis of Regression Coefficients