This repository contains the R code for data simulation and analysis of the paper titled "Effects of DIF in MST routing in ILSA" published at the Large-scale Assessments in Education journal. Any questions should be directed to the corresponding author Montserrat Valdivia Medinaceli (mbvaldiv@iu.edu).
While the mstR package is available on the CRAN repository, a tailored version for routing probabilities was created for Leslie Rutkowski and her team and could be solicited via email (lrutkows@indiana.edu).