plink
1.5-1IRT Separate Calibration Linking Methods
Overview
Item response theory based methods are used to compute linking constants and conduct chain linking of unidimensional or multidimensional tests for multiple groups under a common item design. The unidimensional methods include the Mean/Mean, Mean/Sigma, Haebara, and Stocking-Lord methods for dichotomous (1PL, 2PL and 3PL) and/or polytomous (graded response, partial credit/generalized partial credit, nominal, and multiple-choice model) items. The multidimensional methods include the least squares method and extensions of the Haebara and Stocking-Lord method using single or multiple dilation parameters for multidimensional extensions of all the unidimensional dichotomous and polytomous item response models. The package also includes functions for importing item and/or ability parameters from common IRT software, conducting IRT true score and observed score equating, and plotting item response curves/surfaces, vector plots, information plots, and comparison plots for examining parameter drift.
Install
Health
- NOTE r-devel-linux-x86_64-debian-clang
- NOTE r-devel-linux-x86_64-debian-gcc
- NOTE r-oldrel-macos-arm64
- NOTE r-oldrel-macos-x86_64
- NOTE2026-06-279 OK · 4 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
- WARNING2026-06-148 OK · 4 NOTE · 1 WARNING · 0 ERROR · 0 FAILURE
- NOTE2026-03-106 OK · 8 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
Documentation
- Examples that run
- 100%
- Documented parameters
- 100%
- Return-value docs
- 100%
- References docs
- 48%
Downloads
Dependencies
Code & Tests
People & History
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29 releases. Pick two to compare their code metrics. R releases are shown for context.
- RR 4.6.0 released · 2026-04-24
- RR 4.5.0 released · 2025-04-11
- RR 4.4.0 released · 2024-04-24
- RR 4.3.0 released · 2023-04-21
- RR 4.2.0 released · 2022-04-22
- RR 4.1.0 released · 2021-05-18
- RR 4.0.0 released · 2020-04-24
- RR 3.6.0 released · 2019-04-26
- RR 3.5.0 released · 2018-04-23
- 1.5-1Latest
- RR 3.4.0 released · 2017-04-21
- 1.5-02017-04-07 · diff ↗
- unarchivedReturned to CRAN2017-04-07
- RR 3.3.0 released · 2016-05-03
- RR 3.2.0 released · 2015-04-16
- archivedRemoved from CRAN2014-09-20vignette locations were never updated for R 3.1.0
Show 40 earlier events
- RR 3.1.0 released · 2014-04-10
- RR 3.0.0 released · 2013-04-03
- RR 2.15.0 released · 2012-03-30
- RR 2.14.0 released · 2011-10-31
- 1.3-12011-07-25 · diff ↗
- RR 2.13.0 released · 2011-04-13
- 1.3-02011-02-12 · diff ↗
- 1.2-72010-10-19 · diff ↗
- RR 2.12.0 released · 2010-10-15
- 1.2-62010-09-15 · diff ↗
- 1.2-52010-08-13 · diff ↗
- 1.2-42010-07-27 · diff ↗
- RR 2.11.0 released · 2010-04-22
- 1.2-32010-04-19 · diff ↗
- RR 2.10.0 released · 2009-10-26
- 1.2-22009-10-23 · diff ↗
- 1.2-12009-09-29 · diff ↗
- 1.2-02009-08-19 · diff ↗
- 1.1-62009-08-07 · diff ↗
- 1.1-52009-07-26 · diff ↗
- 1.1-42009-06-19 · diff ↗
- 1.1-32009-06-14 · diff ↗
- 1.1-22009-06-02 · diff ↗
- 1.1-12009-05-28 · diff ↗
- 1.1-02009-05-15 · diff ↗
- 1.0.02009-04-19 · diff ↗
- RR 2.9.0 released · 2009-04-17
- 0.1-12009-01-26 · diff ↗
- RR 2.8.0 released · 2008-10-20
- 0.1-02008-09-28 · diff ↗
- 0.0-62008-09-10 · diff ↗
- 0.0-52008-09-08 · diff ↗
- RR 2.7.0 released · 2008-04-22
- 0.0-42007-12-05 · diff ↗
- 0.0-32007-12-02 · diff ↗
- RR 2.6.0 released · 2007-10-03
- 0.0-22007-09-21 · diff ↗
- 0.0-12007-09-13 · diff ↗
- 0.0-02007-09-04
- RR 2.5.0 released · 2007-04-24
Package metadata
- First published
- 2007-09-04
- Total releases
- 29 / 19 yrs
- License
- GPL (>= 2) OSI
- Minimum R
- ≥ 3.3.3
- Bundled data
- 32 KB / 1 file
- Download size
- 631 KB
- Installed size
- not tracked yet
- With dependencies
- not tracked yet
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