jAMM: A Suite for Mediation Models

jamovi Advanced Mediation Models version 1.*

Docs and help

Please visit the jAMM docs page

State of the art

• Path model
• Interactions in the path models
• Checks for coherence of the model
• Suggestions towards more coherent models
• Automatically guessing the mediation model more likely to be needed
• Custom models from UI
• It estimates the model coefficients
• Simple mediational effects (estimated at different levels of moderators)
• OLS Regressions for each step of model estimation

Not implemented

• Interactions among moderators of moderators (not really high priority)
• Rigorous checks for weired and complex models

Install

jAMM can be installed from jamovi library within jamovi.

If you want to install from source, you need to install R developing tools from CRAN and jamovi developing tools.

install.packages("devtools",repos='http://cran.rstudio.com/')

install.packages('jmvtools', repos=c('https://repo.jamovi.org', 'https://cran.r-project.org'))

Then you download jAMM module from this repository and install it

devtools::install_github("jamovi-amm/jamm")
pkg<-paste0(.libPaths()[[1]],"jamm")
jmvtools::install(pkg=pkg)