| expdata | Expected Ratings Matrix |
| ims | Item Measures |
| misfit | Infit and Outfit Statistics |
| msd | Method of Successive Dichotomizations |
| msdprob | Rating Category Probabilities |
| pms | Person Measures |
| rasch | Dichotomous Rasch Model |
| simdata | Simulated Rating Scale Data |
| thresh | Rating Category Thresholds |