MPTmultiverse: Multiverse Analysis of Multinomial Processing Tree Models

Statistical or cognitive modeling usually requires a number of more or less arbitrary choices creating one specific path through a 'garden of forking paths'. The multiverse approach (Steegen, Tuerlinckx, Gelman, & Vanpaemel, 2016, <doi:10.1177/1745691616658637>) offers a principled alternative in which results for all possible combinations of reasonable modeling choices are reported. MPTmultiverse performs a multiverse analysis for multinomial processing tree (MPT, Riefer & Batchelder, 1988, <doi:10.1037/0033-295X.95.3.318>) models combining maximum-likelihood/frequentist and Bayesian estimation approaches with different levels of pooling (i.e., data aggregation) as described in Singmann et al. (2024, <doi:10.1037/bul0000434>). For the frequentist approaches, no pooling (with and without parametric or nonparametric bootstrap) and complete pooling are implemented using MPTinR <https://cran.r-project.org/package=MPTinR>. For the Bayesian approaches, no pooling, complete pooling, and three different variants of partial pooling are implemented using TreeBUGS <https://cran.r-project.org/package=TreeBUGS>. The main function is fit_mpt() which performs the multiverse analysis in one call.

Version: 0.4-3
Depends: R (≥ 4.0.0)
Imports: parallel, magrittr, tidyr, dplyr, tibble, rlang, reshape2, ggplot2, MASS, MPTinR, TreeBUGS (≥ 1.4.4), runjags, coda, purrr, readr, utils
Suggests: knitr, rmarkdown, testthat
Published: 2026-02-16
DOI: 10.32614/CRAN.package.MPTmultiverse
Author: Henrik Singmann ORCID iD [aut, cre], Daniel W. Heck [aut], Marius Barth ORCID iD [aut], Frederik Aust ORCID iD [ctb]
Maintainer: Henrik Singmann <singmann at gmail.com>
BugReports: https://github.com/mpt-network/MPTmultiverse/issues
License: GPL-2
URL: https://github.com/mpt-network/MPTmultiverse
NeedsCompilation: no
Materials: README, NEWS
CRAN checks: MPTmultiverse results

Documentation:

Reference manual: MPTmultiverse.html , MPTmultiverse.pdf
Vignettes: Overview of MPT Multiverse: An Example Application (source, R code)

Downloads:

Package source: MPTmultiverse_0.4-3.tar.gz
Windows binaries: r-devel: not available, r-release: not available, r-oldrel: not available
macOS binaries: r-release (arm64): not available, r-oldrel (arm64): not available, r-release (x86_64): not available, r-oldrel (x86_64): not available
Old sources: MPTmultiverse archive

Linking:

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