R Observatory: Metrics for subscore version 3.3

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

subscore

3.3Package record

Computing Subscores in Classical Test Theory and Item Response Theory

0packages depend

3.8Kdownloads / year

–test coverage

13/13flavors OK

Overview

About

Maintained by Shenghai DaiCRAN page ↗

Functions for computing test subscores using different methods in both classical test theory (CTT) and item response theory (IRT). This package enables three types of subscoring methods within the framework of CTT and IRT, including (1) Wainer's augmentation method (Wainer et. al., 2001) doi:10.4324/9781410604729, (2) Haberman's subscoring methods (Haberman, 2008) doi:10.3102/1076998607302636, and (3) Yen's objective performance index (OPI; Yen, 1987) https://www.ets.org/research/policy_research_reports/publications/paper/1987/hrap. It also includes functions to compute Proportional Reduction of Mean Squared Errors (PRMSEs) in Haberman's methods which are used to examine whether test subscores are of added value. In addition, the package includes a function to assess the local independence assumption of IRT with Yen's Q3 statistic (Yen, 1984 doi:10.1177/014662168400800201; Yen, 1993 doi:10.1111/j.1745-3984.1993.tb00423.x).

Install

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

install.packages("subscore", 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-subscore

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled. We list this channel from recorded r2u download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

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-subscore

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-subscore

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed). We list this channel from recorded autoCRAN download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

Health

CRAN checks

13OK

CRAN check page ↗

Slowest check: 2.4 min · r-oldrel-windows-x86_64

Status changes

OK13 OK2026-08-04
NOTE12 OK, 1 NOTE2026-08-01
OK14 OK2026-03-30
ERROR13 OK, 1 ERROR2026-03-28
OK14 OK2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 3.3

READMENoVignettesNoNEWSNoCitation fileNoWebsitenot declared in DESCRIPTION

Help pages: 12
Examples that run: 100%12 run in a plain check
Exported functions with examples: 100%
Documented parameters: 100%
Return-value docs: 100%
Help pages citing references: 67%

How these are measured

Downloads

3.8K

CRAN downloads in the past year

Rank #10,313 · ~10/day · ~315/mo

Releases R versions

Daily download trend is not available in this view yet.

47430 days

99390 days

3.8K1 year

Compare downloads with other packages →

Also on89 r2u4 autocran128 c2d4u

How downloads are counted

Dependencies

Declared dependencies

5 external dependencies (excludes base and recommended)

Installing subscore adds 28 packages (19 with compiled code, 18 MB of source tarballs). Heaviest: sirt 5.5 MB, Rcpp 1.8 MB, CDM 1.1 MB.

Depends (6)

R >= 3.4.0CTTstatsirtoys sirt ltm

Imports (2)

cocorboot

LinkingTo (0)

none

Suggests (0)

none

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

How these are counted

Code & Tests

Datasets

People & History

People (3)

Shenghai Dai

Author, Maintainer since 1.1 (2015)

Dubravka Svetina

Author

Xiaolin Wang

Author

Releases (7)

Pick two releases to compare their code metrics.

R
R 4.6.0 released · 2026-04-24
R
R 4.5.0 released · 2025-04-11
R
R 4.4.0 released · 2024-04-24
R
R 4.3.0 released · 2023-04-21
unarchivedReturned to CRAN
2022-05-24
3.3Latest
record
2022-05-24 · current release · diff ↗
archivedRemoved from CRAN
2022-05-12
requires archived package 'CDM'
R
R 4.2.0 released · 2022-04-22
R
R 4.1.0 released · 2021-05-18
R
R 4.0.0 released · 2020-04-24
R
R 3.6.0 released · 2019-04-26
3.1
record
2019-04-13 · diff ↗ ·
added 1 export
Yen.Q3
3.0
record
2019-03-03 · diff ↗ ·
added 1 export
subscore.corr
R
R 3.5.0 released · 2018-04-23
R
R 3.4.0 released · 2017-04-21
2.0
record
2016-12-03 · diff ↗ ·
removed 4 exports
RegOnSub, RegOnTot, RegOnTotSub, Wainer.score

added 5 exports
Yen.OPI, subscore.Wainer, subscore.s, subscore.sx, subscore.x

Show 5 earlier eventsHide 5 earlier events

1.3
record
2016-08-17 · diff ↗ ·
removed 3 exports
CTTsub.RegOnSub, CTTsub.RegOnTot, CTTsub.RegOnTotSub

added 4 exports
RegOnSub, RegOnTot, RegOnTotSub, Wainer.score
R
R 3.3.0 released · 2016-05-03
1.2
record
2015-11-21 · diff ↗
1.1
record
2015-08-19
R
R 3.2.0 released · 2015-04-16

Package metadata

First published: 2015-08-19
Total releases: 7 / 11 yrs
License: GPL (>= 2) OSI
Minimum R: ≥ 3.4.0
Bundled data: 12 KB / 3 files
Download size: 28 KB

Appears in task views

Psychometric Models and Methods

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("subscore")

Format

Dai, S., Svetina, D., & Wang, X. (2022). subscore: Computing Subscores in Classical Test Theory and Item Response Theory (Version 3.3) [Computer software]. https://doi.org/10.32614/CRAN.package.subscore

This package has no citation file, so citation() returns this entry built from DESCRIPTION.

Cite the R Observatory

For a number measured here: a download total, a coverage figure, an archival date.

Format

APA

Balamuta, J. J. (2026). R Observatory: Metrics for subscore version 3.3 [Data set]. HJJB, LLC. Data release v2026-10-23. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-23, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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