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epmfd  

Exploratory and Person/Item Misfit Diagnostics for Polytomous Data
View on CRAN: Click here


Download and install epmfd package within the R console
Install from CRAN:
install.packages("epmfd")

Install from Github:
library("remotes")
install_github("cran/epmfd")

Install by package version:
library("remotes")
install_version("epmfd", "1.1.1")



Attach the package and use:
library("epmfd")
Maintained by
Hasan Bulut
[Scholar Profile | Author Map]
All associated links for this package
First Published: 2025-10-20
Latest Update: 2025-10-20
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) <doi:10.1007/BF03372160>.
How to cite:
Hasan Bulut (2025). epmfd: Exploratory and Person/Item Misfit Diagnostics for Polytomous Data. R package version 1.1.1, https://cran.r-project.org/web/packages/epmfd. Accessed 24 Oct. 2026.
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