README.md

In ddebeer/scDIFtest: Item-Wise Score-Based DIF Detection

Item-wise score-based tests for DIF detection

This R-package allows efficient item-wise score-based tests for DIF-detection. The scDIFtest is nothing more than a handy wrapper around the sctest function from the strucchange-package. scDIFtest only works for fitted IRT models that are returned by the mirt-package. The computation of the maximum likelihood score contributions is also done by the mirt-package.

Score-based DIF-tests can be executed for all items (or a selection of the items) simultaneously. Since the goal is to detect possible DIF in every item individually, no correction for multiple testing is included.

Installation

The package can be installed using using the devtools-package:

install.packages("devtools")
devtools::install_github("ddebeer/scDIFtest")

ddebeer/scDIFtest documentation built on July 8, 2020, 9:33 p.m.