Approach | Method | Required parametric assumptions | Inference |
---|---|---|---|
Model-free | Sample statistics | • None | • Population average estimates |
Model-based | Marginal models | • Variance to mean relationship • Correlation structure among repeated measures | • Population average estimates • Covariate effects |
 | Conditional mixed models | • Conditional distribution of data • Distribution of random effects | • Individual estimates • Covariate effects |
 | Bayesian conditional mixed models | • Conditional distribution of data • Distribution of random effects • Prior distribution of parameters | • Individual estimates • Covariate effects • Fully integrated parameter uncertainty |