| data_sim | Simulated data set |
| DIFtree | Item Focused Trees for the Identification of Items in Differential Item Functioning |
| plot.DIFtree | Plotting Item focussed Trees |
| predict.DIFtree | Prediction of item difficulties of Item focussed Trees |
| print.DIFtree | Item Focused Trees for the Identification of Items in Differential Item Functioning |
| summary.DIFtree | Item Focused Trees for the Identification of Items in Differential Item Functioning |