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RMediation: Mediation Analysis Confidence Intervals

Computes confidence intervals for nonlinear functions of model parameters (e.g., product of k coefficients) in single-level and multilevel structural equation models. Methods include the distribution of the product, Monte Carlo simulation, and bootstrap methods. It also performs the Model-Based Constrained Optimization (MBCO) procedure for hypothesis testing of indirect effects. References: Tofighi, D., and MacKinnon, D. P. (2011). RMediation: An R package for mediation analysis confidence intervals. Behavior Research Methods, 43, 692-700. <doi:10.3758/s13428-011-0076-x>; Tofighi, D., and Kelley, K. (2020). Improved inference in mediation analysis: Introducing the model-based constrained optimization procedure. Psychological Methods, 25(4), 496-515. <doi:10.1037/met0000259>; Tofighi, D. (2020). Bootstrap Model-Based Constrained Optimization Tests of Indirect Effects. Frontiers in Psychology, 10, 2989. <doi:10.3389/fpsyg.2019.02989>.

Version: 1.3.0
Depends: R (≥ 4.1.0), base (≥ 4.1.0), stats (≥ 4.1.0)
Imports: graphics (≥ 4.1.0), lavaan (≥ 0.5-20), e1071 (≥ 1.6-7), OpenMx (≥ 2.13), grDevices (≥ 4.1.0), MASS (≥ 7.3), modelr (≥ 0.1.8), generics (≥ 0.0.2), checkmate (≥ 2.1.0)
Suggests: knitr, rmarkdown, testthat (≥ 3.0.0)
Published: 2025-11-20
DOI: 10.32614/CRAN.package.RMediation
Author: Davood Tofighi ORCID iD [aut, cre]
Maintainer: Davood Tofighi <dtofighi at gmail.com>
BugReports: https://github.com/data-wise/rmediation/issues
License: GPL (≥ 3) | file LICENSE
URL: https://data-wise.github.io/rmediation/, https://github.com/data-wise/rmediation
NeedsCompilation: no
Materials: README, NEWS
CRAN checks: RMediation results

Documentation:

Reference manual: RMediation.html , RMediation.pdf

Downloads:

Package source: RMediation_1.3.0.tar.gz
Windows binaries: r-devel: RMediation_1.2.2.zip, r-release: RMediation_1.2.2.zip, r-oldrel: RMediation_1.2.2.zip
macOS binaries: r-release (arm64): RMediation_1.3.0.tgz, r-oldrel (arm64): RMediation_1.3.0.tgz, r-release (x86_64): RMediation_1.3.0.tgz, r-oldrel (x86_64): RMediation_1.3.0.tgz
Old sources: RMediation archive

Linking:

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These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.
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