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ria.test  

Testing Equality of Natural Mediation Effects and Their Randomized Interventional Analogues
View on CRAN: Click here


Download and install ria.test package within the R console
Install from CRAN:
install.packages("ria.test")

Install from Github:
library("remotes")
install_github("cran/ria.test")

Install by package version:
library("remotes")
install_version("ria.test", "0.3.0")



Attach the package and use:
library("ria.test")
Maintained by
Ang Yu
[Scholar Profile | Author Map]
All associated links for this package
First Published: 2026-07-21
Latest Update: 2026-07-21
Description:
Implements the empirical test introduced by Yu, Ge, and Elwert (2026) for detecting when randomized interventional analogues should not be interpreted as natural mediation effects. The package estimates natural effects, their randomized interventional analogues, and TE - TE^R, the difference between the total effect and its randomized interventional analogue. Rejecting TE - TE^R = 0 falsifies the composite null that the natural indirect and direct effects equal their randomized interventional analogues. The procedure remains valid in settings where the natural effects themselves are not identified, and |TE - TE^R| provides a lower bound on the total divergence between the natural and randomized interventional decompositions.
How to cite:
Ang Yu (2026). ria.test: Testing Equality of Natural Mediation Effects and Their Randomized Interventional Analogues. R package version 0.3.0, https://cran.r-project.org/web/packages/ria.test. Accessed 24 Oct. 2026.
Previous versions and publish date:
(2026-09-15 02:20), 0.2.1 (2026-07-21 12:50)
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Complete documentation for ria.test
Functions, R codes and Examples using the ria.test R package
Full ria.test package functions and examples
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