KernSmoothIRT: Nonparametric Item Response Theory

Fits nonparametric item and option characteristic curves using kernel smoothing. It allows for optimal selection of the smoothing bandwidth using cross-validation and a variety of exploratory plotting tools. The kernel smoothing is based on methods described in Silverman, B.W. (1986). Density Estimation for Statistics and Data Analysis. Chapman & Hall, London.

Package details

AuthorAngelo Mazza [aut], Antonio Punzo [aut], Brian McGuire [aut, cre]
MaintainerBrian McGuire <mcguirebc@gmail.com>
LicenseGPL-2
Version6.6
Package repositoryView on CRAN
Installation Install the latest version of this package by entering the following in R:
install.packages("KernSmoothIRT")

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KernSmoothIRT documentation built on July 23, 2026, 9:06 a.m.