Cognitively Diagnostic Analysis Using the G-DINA Model in R

Cognitive diagnosis models (CDMs) have increasingly been applied in education and other fields. This article provides an overview of a widely used CDM, namely, the G-DINA model, demonstrates hands-on example using multiple R packages for series CDM analyses. involves step-by-step illustration explanation performing Q-matrix evaluation, calibration, model fit item diagnosticity investigation, classification reliability examination, result presentation visualization. Some limitations conducting analysis are also discussed.