| irtrees-package | Estimation of Tree-Based Item Response Models |
| dendrify | Measurement Mapping for an IRTree Model |
| exogenize | Structural Mapping for an IRTree Model |
| irtrees | Estimation of Tree-Based Item Response Models |
| linlat | Example Data: Sequential-Order Latent Variable Models |
| linresp | Example Data: Linear Hierarchical Categories |
| neslat | Example Data: Nested Hierarchical Categories |
| nesresp | Example Data: Nested Hierarchical Latent Variables |
| VerbAgg2 | Verbal Aggression Data, Dichotomized Items |
| VerbAgg3 | Verbal Aggression Data, Three-Category Items |