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epmfd (version 1.1.1)

Exploratory and Person/Item Misfit Diagnostics for Polytomous Data

Description

Analysis of items and persons in data. To identify and remove person misfit in polytomous item-response data using either 'mokken' or a graded response model (GRM, via 'mirt'). Provides automatic thresholds, visual diagnostics (2D/3D), and export utilities. Methods build on Mokken scaling as in Mokken (1971, ISBN:9789027968821) and on the graded response model of Samejima (1969) .

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Install

install.packages('epmfd')

Monthly Downloads

176

Version

1.1.1

License

GPL-3

Issues

0

Pull Requests

0

Stars

0

Forks

0

Maintainer

Hasan BULUT

Last Published

October 20th, 2025

Functions in epmfd (1.1.1)

export_epmfd

Export epmfd objects to disk
print.epmfd_misfit

Print Method for epmfd_misfit Objects
sampledata

Example Polytomous Response Data
clean_epmfd

Remove misfitting persons from an epmfd_misfit object
summary.epmfd_clean

Summary method for epmfd_clean objects
plot_epmfd

Plot methods for epmfd objects
load_epmfd

Load and validate raw data for the epmfd workflow
plot_misfit

Plot person misfit in 2D/3D using stored thresholds
scale_epmfd

Scale polytomous item responses
misfit_epmfd

Compute person-fit statistics (polytomous data)