Man pages for lordif
Logistic Ordinal Regression Differential Item Functioning using IRT
| Anxiety | A Measure of Anxiety |
| calcprob | calculates item response probabilities |
| calctheta | calculates EAP theta estimates and associated standard errors |
| collapse | collapses response categories |
| DFIT | calculates DFIT statistics |
| equate | performs Stocking-Lord Equating |
| extract | extracts IRT item parameters |
| getcutoff | determines a cutoff threshold |
| lordif | performs Logistic Ordinal Regression Differential Item... |
| lordif-package | Logistic Ordinal Regression Differential Item Functioning... |
| montecarlo | performs Monte Carlo simulations to generate empirical... |
| permute | performs permutation test for empirical cutoff thresholds |
| plot.lordif | Plot method for lordif class |
| plot.lordif.MC | Plot method for Monte Carlo simulation output |
| probgpcm | calculates item response probabilities according to GPCM |
| probgrm | calculates item response probabilities according to GRM |
| recode | recodes item responses |
| rundif | runs ordinal logistic regression DIF |
| runolr | runs ordinal logistic regression models |
| separate | splits item response vectors of DIF items by group |
| tcc | computes a test characteristic curve (tcc) |
