shortIRT

2.0.0

Procedures Based on Item Response Theory Models for the Development of Short Test Forms

0packages depend

5.3Kdownloads / year

0.0%test coverage

13/13checks pass

Overview

About

Maintained by Ottavia M. EpifaniaFirst published 2023-11-026 releasesCRAN page ↗

Implement different Item Response Theory (IRT) based procedures for the development of tests from item bank. The procedures are flexible enough to be adopted for the development of short forms of full-length tests. Different procedures are considered (Epifania, Anselmi & Robusto, 2022 doi:10.1007/978-3-031-27781-8_7 and Epifania & Finos, 2025 doi:10.1007/978-3-031-95995-0_32). The main difference between the presented procedures refers to the degree of control that they allow for targeting specific latent trait levels. The simplest procedure, denoted as benchmark procedure, does not allow for any control on the latent trait levels of interest, while the other procedures allow for specifying either discrete latent trait levels for which the information needs to be maximized (theta-target procedure, doi:10.1007/978-3-031-27781-8_7) or a target information function that needs to be recreated with the selected items (item selection algorithm -ISA- denoted as Frank in doi:10.1007/978-3-031-95995-0_32). Another difference concerns the definition of the number of items to be selected. In the benchmark and theta-target procedures, the number of items must be defined a priori, while in ISA the number of items is determined automatically by the algorithm.

Install

R (CRAN)Ubuntu (r2u)Fedora (COPR)openSUSE (OBS)

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

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

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-shortirt

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

# enable the iucar/cran COPR if it is not already present, then install
ls /etc/yum.repos.d/*iucar*cran*.repo >/dev/null 2>&1 \
  || sudo dnf copr enable -y iucar/cran
sudo dnf install -y R-CRAN-shortIRT

RPMs from the iucar/cran COPR, rebuilt from CRAN.

For install.packages() integration in R, also: sudo dnf install R-CoprManager

# 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-shortIRT

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

Health

CRAN checks

13OK

Slowest check: 2.0 min · r-devel-linux-x86_64-fedora-clang

Code health

Yes

Tests · ratio 0.21

0.0%

Coverage · measured lines

100%

Documentation · exports

Dependencies · direct

Check history

OK2026-03-30
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-03-28
13 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 270 wordsVignettesNopkgdown siteNoNEWSYes · 67% structuredCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 93%
Return-value docs: 92%
References docs: 40%

Downloads

5.3K

CRAN downloads in the past year

Rank #8,501 · ~15/day · ~446/mo

Releases R versions

Daily download trend is not available in this view yet.

22130 days

1.2K90 days

5.3K1 year

Compare downloads with other packages →

Also on121 r2u23 autocran

Dependencies

Declared dependencies

5 external dependencies (excludes base and recommended)

Depends (0)

none

Imports (1)

ggplot2

LinkingTo (0)

none

Suggests (5)

MASSrmarkdown sirt testthat V8

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

People & History

People (4)

Maintainer (1)

Ottavia M. Epifania

Author, Maintainer

Authors (1)

Ottavia M. Epifania

Author, Maintainer

Contributors (3)

Pasquale Anselmi

Contributor · added in 0.1.4

Livio Finos

Contributor · added in 1.0.0

Egidio Robusto

Contributor · added in 0.1.4

Listed in earlier versions (3)

Ottavia M. Epifania Pasquale Anselmi [aut, ctb] Egidio Robusto [ctb]

no longer listed · 0.1.0 to 0.1.2

Ottavia M. Epifania Pasquale Anselmi [aut, ctb] Egidio Robusto <egidio.robusto@unipd.it> [ctb]

no longer listed · 0.1.3

Epifania

no longer listed · 0.1.4 to 2.0.0

Package Timeline

6 releases. Pick two to compare their code metrics. R releases are shown for context.

2.0.0Latest
2026-06-04 · current release · diff ↗
R
R 4.6.0 released · 2026-04-24
1.0.0
2026-01-27 · diff ↗
0.1.4
2025-09-08 · diff ↗
R
R 4.5.0 released · 2025-04-11
R
R 4.4.0 released · 2024-04-24
0.1.3
2024-02-16 · diff ↗
0.1.2
2023-11-20 · diff ↗
0.1.0
2023-11-02
R
R 4.3.0 released · 2023-04-21

Package metadata

First published: 2023-11-02
Total releases: 6 / 3 yrs
License: MIT + file LICENSE OSI
Download size: 46 KB
Installed size: not tracked yet
With dependencies: not tracked yet

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