NAEPirtparams

1.0.0

IRT Parameters for the National Assessment of Education Progress

2packages depend

7Kdownloads / year

–test coverage

11/13checks pass

Overview

About

Maintained by Sun-joo LeeFirst published 2021-02-171 releasesCRAN page ↗

This data package contains the Item Response Theory (IRT) parameters for the National Center for Education Statistics (NCES) items used on the National Assessment of Education Progress (NAEP) from 1990 to 2015. The values in these tables are used along with NAEP data to turn student item responses into scores and include information about item difficulty, discrimination, and guessing parameter for 3 parameter logit (3PL) items. Parameters for Generalized Partial Credit Model (GPCM) items are also included. The adjustments table contains the information regarding the treatment of items (e.g., deletion of an item or a collapsing of response categories), when these items did not appear to fit the item response models used to describe the NAEP data. Transformation constants change the score estimates that are obtained from the IRT scaling program to the NAEP reporting metric. Values from the years 2000 - 2013 were taken from the NCES website https://nces.ed.gov/nationsreportcard/ and values from 1990 - 1998 and 2015 were extracted from their NAEP data files. All subtest names were reduced and homogenized to one word (e.g. "Reading to gain information" became "information"). The various subtest names for univariate transformation constants were all homogenized to "univariate".

Install

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

install.packages("NAEPirtparams", 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-naepirtparams

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-NAEPirtparams

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-NAEPirtparams

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

Health

CRAN checks

2NOTE11OK

Failing flavors

NOTE r-devel-linux-x86_64-debian-clang
NOTE r-devel-linux-x86_64-debian-gcc

Slowest check: 38 s · r-devel-windows-x86_64

Code health

None

Tests · ratio 0.00

not tracked

Coverage

Dependencies · direct

Check history

NOTE2026-07-16
11 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
WARNING2026-07-15
11 OK · 1 NOTE · 1 WARNING · 0 ERROR · 0 FAILURE
NOTE2026-03-10
12 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 131 wordsVignettesNopkgdown siteNoNEWSNoCode of conductNoContributing guideNo

Examples that run: 0%
Documented parameters: not tracked
Return-value docs: not tracked
References docs: 75%

Downloads

CRAN downloads in the past year

Rank #8,391 · ~19/day · ~582/mo

Releases R versions

Daily download trend is not available in this view yet.

33530 days

1.2K90 days

7K1 year

Compare downloads with other packages →

Also on115 r2u32 autocran847 conda_forge38 c2d4u

Dependencies

Declared dependencies

0 external dependencies (excludes base and recommended)

Depends (1)

R >= 3.5.0

Imports (0)

none

LinkingTo (0)

none

Suggests (0)

none

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

2direct

1indirect

EdSurvey lsasim

Code & Tests

Datasets

People & History

People (0)

Author records are not tracked yet for this package.

Listed in earlier versions (3)

Paul Bailey

no longer listed · 1.0.0

Eric Buehler

no longer listed · 1.0.0

Sun-joo Lee

no longer listed · 1.0.0

Package Timeline

1 release. R releases are shown for context.

R
R 4.6.0 released · 2026-04-24
1.0.0Latest
2026-03-10 · current release
R
R 4.5.0 released · 2025-04-11

Package metadata

First published: 2021-02-17
Total releases: 1 / 5 yrs
License: GPL-2 OSI
Minimum R: ≥ 3.5.0
Bundled data: 146 KB / 3 files
Download size: 151 KB
Installed size: not tracked yet
With dependencies: not tracked yet

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