robustDIF
Differential Item Functioning Using Robust Scaling
Provides tools for testing differential item functioning (DIF) and differential test functioning (DTF) in two-group item response theory models. The package estimates robust scaling parameters via iteratively reweighted least squares with Tukey's bisquare loss, and supports Wald-type tests of item-level and test-level differences from robust scaling parameters. Inputs can be supplied directly from model parameter/covariance objects or extracted from fitted 'mirt' and 'lavaan' models. Methods are described in Halpin (2022) <doi:10.48550/arXiv.2207.04598>.
Versions across snapshots
| Version | Repository | File | Size |
|---|---|---|---|
0.2.0 |
rolling linux/jammy R-4.5 | robustDIF_0.2.0.tar.gz |
107.3 KiB |
0.2.0 |
rolling linux/noble R-4.5 | robustDIF_0.2.0.tar.gz |
107.0 KiB |
0.2.0 |
rolling source/ R- | robustDIF_0.2.0.tar.gz |
23.9 KiB |
0.2.0 |
latest linux/jammy R-4.5 | robustDIF_0.2.0.tar.gz |
107.3 KiB |
0.2.0 |
latest linux/noble R-4.5 | robustDIF_0.2.0.tar.gz |
107.0 KiB |
0.2.0 |
latest source/ R- | robustDIF_0.2.0.tar.gz |
23.9 KiB |
0.2.0 |
2026-04-26 source/ R- | robustDIF_0.2.0.tar.gz |
23.9 KiB |
0.2.0 |
2026-04-23 source/ R- | robustDIF_0.2.0.tar.gz |
23.9 KiB |