Topic: Testing Fixed and Random Effects

Worked Boundary-Test Calculation for a Random Intercept

Worked Comparison of Fixed-Effect Tests in a Binary GLMM

Worked Fixed-Effect Model-Comparison Workshop

Worked Random-Slope Test with a Mixture Reference

Why Wald and Likelihood-Ratio Tests Disagree in Small Samples

Why Wald Tests Fail for Variance Components

Wilks’ Theorem for Regular Fixed-Effect Tests

Wald Tests for Individual Fixed-Effect Coefficients

Wald Tests for Linear Contrasts

Variance Components and the Parameter-Space Boundary