SIBTEST

Author: Stout, W., & Roussos, L.
Contact: https://cran.r-project.org/web/packages/sibtest
Description: Classical test theory approach to detecting DIF for unidimensional tests by applying a regression-corrected matched-total score approach. SIBTEST is similar to the Mantel-Haenszel approach for detecting DIF but uses a regression correction based on the KR-20/coefficient alpha reliability index to correct the observed differences when the latent trait distributions are not equal. Function supports the standard SIBTEST for dichotomous and poltomous data (compensatory) and also supports crossed DIF testing (i.e., non-compensatory) for dichotomous data.
Analyses: Dimensionality; Factor/Latent Structure; SEM
System Requirements: Windows, Mac OS, & Linux
Measurement Model: IRT/Rasch
License Type: Open-Source (R)
Documentation: manual, user's guide, source code