effectsize: Indices of Effect Size

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>.

Version:	1.0.2
Depends:	R (≥ 4.0)
Imports:	bayestestR (≥ 0.17.0), insight (≥ 1.4.5), parameters (≥ 0.28.3), performance (≥ 0.15.3), datawizard (≥ 1.3.0), stats, utils
Suggests:	correlation (≥ 0.8.7), see (≥ 0.11.0), afex, BayesFactor, boot, brms, car, emmeans, gt, knitr, lavaan, lme4, lmerTest, mgcv, parsnip, pwr, rmarkdown, rms, rstanarm, rstantools, testthat (≥ 3.1.0)
Published:	2026-03-11
DOI:	10.32614/CRAN.package.effectsize
Author:	Mattan S. Ben-Shachar [aut, cre], Dominique Makowski [aut], Daniel Lüdecke [aut], Indrajeet Patil [aut], Brenton M. Wiernik [aut], Rémi Thériault [aut], Ken Kelley [ctb], David Stanley [ctb], Aaron Caldwell [ctb], Jessica Burnett [rev], Johannes Karreth [rev], Philip Waggoner [aut, ctb]
Maintainer:	Mattan S. Ben-Shachar <mattansb at msbstats.info>
BugReports:	https://github.com/easystats/effectsize/issues/
License:	MIT + file LICENSE
URL:	https://easystats.github.io/effectsize/
NeedsCompilation:	no
Language:	en-US
Citation:	effectsize citation info
Materials:	README, NEWS
In views:	MetaAnalysis
CRAN checks:	effectsize results

Documentation:

Reference manual:

effectsize.html , effectsize.pdf

Vignettes:

Effect Sizes for ANOVAs (source, R code) Converting Between Probabilities, Odds (Ratios), and Risk Ratios (source, R code) Converting Between r, d, and Odds Ratios (source, R code) Effect Sizes: Getting Started (source, R code) Support Functions for Model Extensions (source, R code) Effect Size from Test Statistics (source, R code) Automated Interpretation of Indices of Effect Size (source, R code) Standardized Differences (source, R code) Statistical Power (source, R code) Effect Sizes for Contingency Tables (source, R code)

Downloads:

Package source:	effectsize_1.0.2.tar.gz
Windows binaries:	r-devel: effectsize_1.0.2.zip, r-release: effectsize_1.0.1.zip, r-oldrel: effectsize_1.0.2.zip
macOS binaries:	r-release (arm64): effectsize_1.0.2.tgz, r-oldrel (arm64): effectsize_1.0.2.tgz, r-release (x86_64): effectsize_1.0.2.tgz, r-oldrel (x86_64): effectsize_1.0.2.tgz
Old sources:	effectsize archive

Reverse dependencies:

Reverse imports:	apa7, AssumpSure, bruceR, colleyRstats, easystats, markeR, multifear, negligible, psycho, report, see, sjstats, smsets, statdecideR, statsExpressions, suRface.analytics, visvow, volker
Reverse suggests:	bayestestR, cardx, datawizard, ggeffects, gtsummary, heplots, insight, Keng, metaConvert, modelbased, papaja, parameters, prmisc, pubh, rempsyc, Spower, sprtt, tidystats

Linking:

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