SSRTcalc: Monte Carlo and Bayesian Stop-Signal Reaction Time Estimation

Estimates stop-signal reaction time (SSRT) in the stop-signal task using the integration and mean methods described by Verbruggen and colleagues (2019) <doi:10.7554/eLife.46323>. In addition to point estimates, the package provides Monte Carlo tools (nonparametric bootstrap confidence intervals, parametric ex-Gaussian simulation, minimum-trial-count and power analysis, and sensitivity analysis under violations of the horse-race assumptions) and Bayesian estimation via 'Stan', including single-subject and hierarchical ex-Gaussian horse-race models with an optional trigger-failure parameter following Matzke and colleagues (2013) <doi:10.1037/a0030543>, posterior inhibition functions, and posterior predictive checks. The Bayesian layer works with either the 'cmdstanr' or 'rstan' backend.

Version:	2.1.1
Depends:	R (≥ 4.0.0)
Imports:	stats, graphics, grDevices
Suggests:	MASS, cmdstanr (≥ 0.5.0), rstan (≥ 2.26.0), posterior, bayesplot, loo, parallel, testthat (≥ 3.0.0)
Published:	2026-07-06
DOI:	10.32614/CRAN.package.SSRTcalc
Author:	Anton Leontyev [aut, cre]
Maintainer:	Anton Leontyev <antonleontyev at missouristate.edu>
BugReports:	https://github.com/agleontyev/SSRTcalc/issues
License:	GPL-3
URL:	https://github.com/agleontyev/SSRTcalc
NeedsCompilation:	no
Additional_repositories:	https://mc-stan.org/r-packages/
Materials:	README, NEWS
CRAN checks:	SSRTcalc results

Documentation:

Reference manual:

SSRTcalc.html , SSRTcalc.pdf

Downloads:

Package source:	SSRTcalc_2.1.1.tar.gz
Windows binaries:	r-devel: SSRTcalc_2.1.1.zip, r-release: SSRTcalc_2.1.1.zip, r-oldrel: SSRTcalc_2.1.1.zip
macOS binaries:	r-release (arm64): SSRTcalc_2.1.1.tgz, r-oldrel (arm64): SSRTcalc_2.1.1.tgz, r-release (x86_64): SSRTcalc_2.1.1.tgz, r-oldrel (x86_64): SSRTcalc_2.1.1.tgz
Old sources:	SSRTcalc archive

Linking:

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