R package citation, R package reverse dependencies, R package scholars, install an r package from GitHub hy is package acceptance pending why is package undeliverable amazon why is package on hold dhl tour packages why in r package r and r package full form why is r free why r is bad which r package to install which r package has which r package which r package version which r package readxl which r package ggplot which r package fread which r package license where is package.json where is package-lock.json where is package.swift where is package explorer in eclipse where is package where is package manager unity where is package installer android where is package manager console in visual studio who r package which r package to install which r package version who is package who is package deal who is package design r and r package full form r and r package meaning what r package has what package r what is package in java what is package what is package-lock.json what is package in python what is package.json what is package installer do r package can't install r packages r can't find package r can't load package can't load xlsx package r can't install psych package r can't install sf package r Write if else in NONMEM pk pd
IRTC
View on CRAN: Click
here
Download and install IRTC package within the R console
Install from CRAN:
install.packages("IRTC")
Install from Github:
library("remotes")
install_github("cran/IRTC") Install by package version:
library("remotes")
install_version("IRTC", "1.1.1") Attach the package and use:
library("IRTC")
Maintained by
Kunxiang Ma
[Scholar Profile | Author Map]
[Scholar Profile | Author Map]
All associated links for this package
First Published: 2026-07-24
Latest Update: 2026-07-24
Description:
Self-contained marginal maximum likelihood (MML) estimation for unidimensional and multidimensional item response models, including the Rasch / one-parameter logistic, partial credit, rating scale, two-parameter logistic and generalised partial credit models, with latent regression, multiple groups and case weights. A parallelised, dimension-factorised streaming estimation engine supports large between-item (simple-structure) multidimensional models with bounded memory and an opt-in controlled-accuracy quadrature mode that reports a measured approximation error. A usability layer serves non-specialists and automated pipelines: one-stop estimation from common file formats ('Excel', delimited text, 'SPSS', 'Stata', 'SAS') with automatic cleaning and answer-key scoring, pre-estimation data checks, classical item statistics and item fit, plain-language quality ratings, bilingual (English/Chinese) output, spreadsheet exports for item banking and cross-year linking, audience-specific 'Word'/'HTML' reports, and machine-readable results with structured error conditions. Methods follow Adams, Wilson and Wang (1997) <doi:10.1177/0146621697211001>.
How to cite:
Kunxiang Ma (2026). IRTC: Marginal Maximum Likelihood Estimation for Item Response Models. R package version 1.1.1, https://cran.r-project.org/web/packages/IRTC. Accessed 20 Sep. 2026.
Previous versions and publish date:
No previous versions
Other packages that cited IRTC R package
View IRTC citation profile
Other R packages that IRTC depends,
imports, suggests or enhances
Complete documentation for IRTC
Functions, R codes and Examples using
the IRTC R package
Full IRTC package
functions and examples
Downloads during the last 30 days
Today's Hot Picks in Authors and Packages
WASP
The wavelet-based variance transformation method is used for system modelling and prediction. It ref ...
Download / Learn more Package Citations See dependency
Download / Learn more Package Citations See dependency
Maintainer: Ze Jiang (view profile)
RWmisc
Contains convenience functions for working with spatial data across
multiple UTM zones, raster-vect ...
Download / Learn more Package Citations See dependency
Download / Learn more Package Citations See dependency
Maintainer: Rob Williams (view profile)
quickcode
The NOT functions, 'R' tricks and a compilation of some simple quick plus often used 'R' codes to im ...
Download / Learn more Package Citations See dependency
Download / Learn more Package Citations See dependency
Maintainer: Obinna Obianom (view profile)
MatchThem
Provides essential tools for the pre-processing techniques of matching and weighting multiply impute ...
Download / Learn more Package Citations See dependency
Download / Learn more Package Citations See dependency
Maintainer: Farhad Pishgar (view profile)
relimp
Functions to facilitate inference on the relative importance of predictors in a linear or generalize ...
Download / Learn more Package Citations See dependency
Download / Learn more Package Citations See dependency
Maintainer: David Firth (view profile)
migration.indices
Calculate various indices, like Crude Migration Rate,
different Gini indices or the Coefficient of ...
Download / Learn more Package Citations See dependency
Download / Learn more Package Citations See dependency
Maintainer: Gergely Daróczi (view profile)
28,565
R Packages
239,283
Dependencies
75,677
Author Associations
28,566
Publication Badges
