Statistical Tools for the Analysis of Psychophysical Data R package MixedPsy version 1.3.0 CRAN Task View: Psychometrics (https://CRAN.R-project.org/view=Psychometrics) Tools for the analysis of psychophysical data in R. This package allows to estimate the Point of Subjective Equivalence (PSE) and the Just Noticeable Difference (JND), either from a psychometric function or from a Generalized Linear Mixed Model (GLMM). Additionally, the package allows plotting the fitted models and the response data, simulating psychometric functions of different shapes, and simulating data sets. For a description of the use of GLMMs applied to psychophysical data, refer to Moscatelli et al. (2012). Software Depends: R (>= 3.5.0) Imports: beepr, boot, brglm, lme4, Matrix, mnormt, ggplot2, magrittr, dplyr, purrr, rlang, tidyselect Alessandro Moscatelli <moskante@gmail.com> Comprehensive R Archive Network (CRAN) Alessandro Moscatelli [aut, cre] (ORCID: <https://orcid.org/0000-0001-6269-4536>), Priscilla Balestrucci [aut] (ORCID: <https://orcid.org/0000-0002-5764-9439>) GPL (>= 2) 2025-12-04 application/tgz https://CRAN.R-project.org/package=MixedPsy doi:10.32614/CRAN.package.MixedPsy