There are several submodels in HLM (Raudenbush & Bryk, 2002). For instances:
- The One-Way ANOVA with Random Effects (Unconditional model).
- One-way ANCOVA with Random Effects.
- Means-as-Outcomes Regression.
- Random-Coefficient Regression Model.
- Intercepts-and-Slopes-as-Outcomes.
My purpose of doing this is to gain better understanding of how to perform HLM using packages (nlme).