Topic: Transforming Predictors and Outcomes

Power-Transformed Predictors and Marginal Effects

Measurement Units for Power-Transformed Variables

Log-Outcome Models and Multiplicative Error

Logarithms, Measurement Units, and Reference Scales

Jensen’s Inequality and Log-Scale Mean Predictions

Interpreting Level-Log Models

Interpreting Log-Level Models

Interpreting Log-Log Models as Elasticities

Exponentiated Predictions as Geometric Means and Medians

Comparing Transformed Models on the Outcome Scale