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psychometrics package, including MIRT(multidimension item response theory), IRT(item response theory),GRM(grade response theory),CAT(computerized adaptive testing), CDM(cognitive diagnostic model), FA(factor analysis), SEM(Structural Equation Modeling) .
📚 Apps and reports for multiple-choice test analysis in R with Shiny
Classical Test Theory analysis in Julia
A Shiny app that illustrates the relationship between reliability and measurement error.