Topic: Regression in Randomized Studies

Why Subgroup Claims Need Interaction Evidence

When Baseline Adjustment Improves Precision

Why Adjust for Baseline Outcomes

Treatment Effects as Randomized-Study Estimands

Testing Treatment Effect Modification

The Common-Slope ANCOVA Model

The Difference in Means as a Regression

Sensitivity Checks for Trial Regression Models

Reading Coefficients in an Interaction Model

Plotting Treatment Effects Across Baseline Values