sirt

4.2-133

Supplementary Item Response Theory Models

18packages depend

69.8Kdownloads / year

–test coverage

13/13checks pass

Overview

About

Maintained by Alexander RobitzschFirst published 2013-05-2958 releasesCRAN page ↗GitHub ↗

Supplementary functions for item response models aiming to complement existing R packages. The functionality includes among others multidimensional compensatory and noncompensatory IRT models (Reckase, 2009, doi:10.1007/978-0-387-89976-3), MCMC for hierarchical IRT models and testlet models (Fox, 2010, doi:10.1007/978-1-4419-0742-4), NOHARM (McDonald, 1982, doi:10.1177/014662168200600402), Rasch copula model (Braeken, 2011, doi:10.1007/s11336-010-9190-4; Schroeders, Robitzsch & Schipolowski, 2014, doi:10.1111/jedm.12054), faceted and hierarchical rater models (DeCarlo, Kim & Johnson, 2011, doi:10.1111/j.1745-3984.2011.00143.x), ordinal IRT model (ISOP; Scheiblechner, 1995, doi:10.1007/BF02301417), DETECT statistic (Stout, Habing, Douglas & Kim, 1996, doi:10.1177/014662169602000403), local structural equation modeling (LSEM; Hildebrandt, Luedtke, Robitzsch, Sommer & Wilhelm, 2016, doi:10.1080/00273171.2016.1142856).

Install

R (CRAN)pak (dev)Ubuntu (r2u)openSUSE (OBS)

install.packages("sirt", repos = "https://cloud.r-project.org/")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

if (!requireNamespace("pak", quietly = TRUE))
  install.packages("pak", repos = "https://cloud.r-project.org/")
pak::pak("alexanderrobitzsch/sirt")

Development version from alexanderrobitzsch/sirt. Installs pak first if it is not already available.

Release

# enable cranapt (r2u) if it is not already set up, then install
grep -rqs r2u.stat.illinois.edu /etc/apt/sources.list /etc/apt/sources.list.d/ \
  || curl -fsSL https://raw.githubusercontent.com/eddelbuettel/r2u/master/inst/scripts/add_cranapt_noble.sh | sudo bash
sudo apt install -y r-cran-sirt

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled.

bspm (used by r2u) also needs make: sudo apt install make

# add the autoCRAN OBS repo (Tumbleweed) if it is missing, then install
zypper -q lr | grep -qi autoCRAN \
  || sudo zypper addrepo https://download.opensuse.org/repositories/devel:/languages:/R:/autoCRAN/openSUSE_Tumbleweed/devel:languages:R:autoCRAN.repo
sudo zypper install -y R-sirt

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed).

Health

CRAN checks

13OK

Slowest check: 16.6 min · r-devel-linux-x86_64-fedora-clang

Check history

OK2026-05-02
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-04-25
11 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
NOTE2026-04-22
11 OK · 3 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-04-18
10 OK · 3 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
NOTE2026-03-30
8 OK · 6 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Show 2 earlier snapshots

ERROR2026-03-28
8 OK · 5 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
NOTE2026-03-10
11 OK · 3 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

Documentation signals are not tracked yet for this package.

Downloads

69.8K

CRAN downloads in the past year

Rank #1,889 · ~191/day · ~5.8K/mo

sirt Releases R versions

Daily download trend is not available in this view yet.

2.8K30 days

13.4K90 days

69.8K1 year

Compare downloads with other packages →

Also on706 r2u35 autocran247 conda_forge97 c2d4u

Repository

GitHub ↗ alexanderrobitzsch/sirt

27Stars

11Forks

7Open issues

0Open PRs

114Releases

157Commits

2Contributors

item-response-theory

157 commits · Last activity 2026-04-16 · 0% stars, 30d

Repository practices

Upstream repositoryBeta

1 development-tooling and community-health practice detected across 1 family in the upstream repository

Checks run against github.com/alexanderrobitzsch/sirt on 2026-07-19.

Git structural (1)

.gitattributes

How this is detected·Detection ruleset v1 (2026-07-18)

Dependencies

Declared dependencies

22 external dependencies (excludes base and recommended)

Depends (1)

R >= 3.5

Imports (9)

CDMgraphicsmethodsparallelpbapply RcppstatsTAMutils

LinkingTo (3)

pbv Rcpp RcppArmadillo

Suggests (17)

coda igraph lavaanMASSMatrixmiceadds minqa mirt mvtnorm nloptr optimx pbivnorm pbv psych sfsmisc sm survey

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

18direct

1indirect

subscore FAfA GRShiny LAM MLEce RChASM STARTS cdmTools discnorm immer mdmb LSAmitR PsychoMatic dextergui miceadds mirt pairwiseLLM shortIRT

Code & Tests

Datasets

People & History

People (1)

Maintainer (1)

Alexander Robitzsch

Author, Maintainer

Authors (1)

Alexander Robitzsch

Author, Maintainer

Listed in earlier versions (1)

Alexander Robitzsch ()

no longer listed · 2.7-50 to 4.1-15

Package Timeline

58 releases. R releases are shown for context.

R
R 4.6.0 released · 2026-04-24
4.2-133Latest
2025-09-28 · current release · diff ↗
R
R 4.5.0 released · 2025-04-11
R
R 4.4.0 released · 2024-04-24
4.1-15
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4.0-32
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3.13-228
2023-08-11 · diff ↗
R
R 4.3.0 released · 2023-04-21
3.12-66
2022-05-17 · diff ↗
unarchivedReturned to CRAN
2022-05-17
archivedRemoved from CRAN
2022-05-12
requires archived package 'CDM'
R
R 4.2.0 released · 2022-04-22
3.11-21
2021-12-09 · diff ↗
3.10-118
2021-09-23 · diff ↗
R
R 4.1.0 released · 2021-05-18
R
R 4.0.0 released · 2020-04-24

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R 3.6.0 released · 2019-04-26
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R 3.4.0 released · 2017-04-21
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R 3.3.0 released · 2016-05-03
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R 3.2.0 released · 2015-04-16
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R 3.1.0 released · 2014-04-10
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2013-05-29
R
R 3.0.0 released · 2013-04-03

Package metadata

First published: 2013-05-29
Total releases: 58 / 13 yrs
License: GPL (>= 2) OSI
Download size: 5.5 MB
Installed size: not tracked yet
With dependencies: not tracked yet

Appears in task views

Psychometric Models and Methods

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