effectsize

Overview

About

Maintained by Mattan S. Ben-ShacharFirst published 2019-11-1531 releasesCRAN page ↗GitHub ↗

Provide utilities to work with indices of effect size for a wide variety of models and hypothesis tests (see list of supported models using the function 'insight::supported_models()'), allowing computation of and conversion between indices such as Cohen's d, r, odds, etc. References: Ben-Shachar et al. (2020) doi:10.21105/joss.02815.

Install

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

install.packages("effectsize", 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("easystats/effectsize")

Development version from easystats/effectsize. 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-effectsize

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-effectsize

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-effectsize

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

Health

CRAN checks

5NOTE8OK

Failing flavors

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

Slowest check: 9.3 min · r-devel-linux-x86_64-fedora-clang

Code health

Yes

Tests · ratio 0.38

89.5%

Coverage · measured lines

100%

Documentation · exports

7

Dependencies · direct

Check history

NOTE2026-07-11
12 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
OK2026-07-08
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-04-25
11 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
OK2026-03-14
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-03-10
9 OK · 0 NOTE · 0 WARNING · 5 ERROR · 0 FAILURE

Documentation

READMEYes · 493 wordsVignettesYes · dynamicpkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo

Examples that run: 90%
Documented parameters: 79%
Return-value docs: 50%
References docs: 61%

Downloads

800.2K

CRAN downloads in the past year

Rank #429 · ~2.2K/day · ~66.7K/mo

Releases R versions

Daily download trend is not available in this view yet.

63.7K30 days

207.4K90 days

800.2K1 year

Compare downloads with other packages →

Also on4.3K r2u24 autocran12.2K conda_forge80 c2d4u

Repository

GitHub ↗ easystats/effectsize

352Stars

25Forks

20Open issues

2Open PRs

23Releases

1,933Commits

16Contributors

effectsizecorrelationconversioninterpretationcohens-danovastandardizationhedges-g

1,933 commits · Last activity 2026-07-07 · +0.3% stars, 30d

Stars over time

2025-06-11 · 3412026-07-07 · 352

Repository practices

Upstream repositoryBeta

13 development-tooling and community-health practices detected across 7 families in the upstream repository

Checks run against github.com/easystats/effectsize on 2026-07-19.

Continuous integration (1)

GitHub Actions

Reproducibility and dev environment (1)

data-raw/

CRAN release process (1)

cran-comments.md

Docs source (1)

README.Rmd

Show all practices

Lint, format, editor (4)

lintrAirVS CodeRStudio project

Governance and community (4)

Issue templatesPR templateFundingSupport guide

Git structural (1)

.gitattributes

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

Dependencies

Declared dependencies

24 external dependencies (excludes base and recommended)

Depends (1)

R >= 4.0

Imports (7)

bayestestR insight parameters (>= 0.29.2)performance datawizardstatsutils

LinkingTo (0)

none

Suggests (21)

correlation see afex BayesFactorbootbrms car emmeans gt knitr lavaan lme4 lmerTestmgcvparsnip pwr rmarkdown rms rstanarm rstantools testthat

Enhances (0)

none

Dependency license breakdown →

People & History

People (12)

Maintainer (1)

Mattan S. Ben-Shachar

Author, Maintainer

Authors (7)

Mattan S. Ben-Shachar

Author, Maintainer

Daniel Lüdecke

Author

Dominique Makowski

Author

Indrajeet Patil

Author · added in 0.4.1

Rémi Thériault

Author · added in 0.8.3

Philip Waggoner

Author, Contributor · added in 0.8.7

Brenton M. Wiernik

Author · added in 0.6.0

Contributors (4)

Philip Waggoner

Author, Contributor · added in 0.8.7

Aaron Caldwell

Contributor · added in 0.8.3

Ken Kelley

Contributor

David Stanley

Contributor

Reviewers (2)

Jessica Burnett

Reviewer · added in 0.5

Johannes Karreth

Reviewer · added in 0.5

Package Timeline

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

1.0.3Latest
2026-07-07 · current release · diff ↗
R
R 4.6.0 released · 2026-04-24
1.0.2
2026-03-11 · diff ↗
1.0.1
2025-05-27 · diff ↗
R
R 4.5.0 released · 2025-04-11
1.0.0
2024-12-10 · diff ↗
0.8.9
2024-07-03 · diff ↗
0.8.8
2024-05-12 · diff ↗
R
R 4.4.0 released · 2024-04-24
0.8.7
2024-04-01 · diff ↗
0.8.6
2023-09-14 · diff ↗
0.8.5
2023-08-09 · diff ↗
R
R 4.3.0 released · 2023-04-21
0.8.3
2023-01-28 · diff ↗
0.8.2
2022-10-31 · diff ↗
0.8.1
2022-10-18 · diff ↗

Show 23 earlier events

0.8.0
2022-10-09 · diff ↗
0.7.0.5
2022-08-10 · diff ↗
0.7.0
2022-05-26 · diff ↗
R
R 4.2.0 released · 2022-04-22
0.6.0.1
2022-01-26 · diff ↗
0.6.0
2022-01-14 · diff ↗
0.5
2021-10-04 · diff ↗
0.4.5
2021-05-25 · diff ↗
R
R 4.1.0 released · 2021-05-18
0.4.4-1
2021-04-05 · diff ↗
0.4.4
2021-03-14 · diff ↗
0.4.3
2021-01-18 · diff ↗
0.4.1
2020-12-07 · diff ↗
0.4.0
2020-10-25 · diff ↗
0.3.3
2020-09-17 · diff ↗
0.3.2
2020-07-27 · diff ↗
0.3.1
2020-05-19 · diff ↗
R
R 4.0.0 released · 2020-04-24
0.3.0
2020-04-11 · diff ↗
0.2.0
2020-02-25 · diff ↗
0.1.1
2020-01-27 · diff ↗
0.0.1
2019-11-15
R
R 3.6.0 released · 2019-04-26

Package metadata

First published: 2019-11-15
Total releases: 31 / 7 yrs
License: MIT + file LICENSE OSI
Minimum R: ≥ 4.0
Bundled data: 16 KB / 9 files
Download size: 379 KB
Installed size: not tracked yet
With dependencies: not tracked yet

Appears in task views

Meta-Analysis