| a.plot | a-plot DIF method |
| b.plot | The b-plot DIF procedure |
| bring.flexmirt | Import Item and Ability Parameters from IRT Software |
| CI.for.D | The confidence interval for the MH delta effect size |
| DIF.Logistic | Logistic regression DIF method |
| DIF.Logistic.MG | Logistic regression DIF method for more than two groups |
| drm | Dichotomous Response Model Probabilities |
| GMH.poly | The generlized MH procedure on polytomous data |
| LordChi | Lord’s Chi-Square DIF Procedure |
| Mantel.poly | Mantel–Haenszel DIF Statistics for polytomous data |
| PDIF | The PDIF effect size from the difMH |
| plm | Polytomous Response Model Probabilities (GRM and GPCM) |
| plot.cond.exp | Plots of the conditional expected scores for polytomous item |
| plot.cond.p | The conditional p-value plot for the Standardized p-value... |
| plot.traceline | Plot ICC and TCC |
| preplink | Data Preparation for IRT Linking |
| rescale | IRT Linking to Transform Scale of Parameters |
| SIBTEST.exp | SIBTEST |
| SMD | Standardized Mean Difference (SMD) for DIF detection |
| traceline | Compute Item/Test Characteristic Functions |
| transpar | Transform the IRT Parameters |
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