Package: intervalpsych Title: Analyzing Interval Data in Psychometrics Version: 0.1.0 Maintainer: Matthias Kloft Authors@R: c(person("Matthias", "Kloft", email = "kloft.dev+intervalpsych@gmail.com", role = c("aut", "cre", "cph"), comment = c(ORCID = "0000-0003-1845-6957")), person("Björn S.", "Siepe", email = "bjoernsiepe@gmail.com", role = c("aut"), comment = c(ORCID = "0000-0002-9558-4648"))) Description: Implements the Interval Consensus Model (ICM) for analyzing continuous bounded interval-valued responses in psychometrics using 'Stan' for 'Bayesian' estimation. Provides functions for transforming interval data to simplex representations, fitting item response theory (IRT) models with isometric log-ratio (ILR) and sum log-ratio (SLR) link functions, and visualizing results. The package enables aggregation and analysis of interval-valued response data commonly found in psychological measurement and related disciplines. Based on Kloft et al. (2024) . License: GPL (>= 3) Encoding: UTF-8 URL: https://matthiaskloft.github.io/intervalpsych/, https://github.com/matthiaskloft/intervalpsych BugReports: https://github.com/matthiaskloft/intervalpsych/issues RoxygenNote: 7.3.2 Biarch: true Depends: R (>= 4.1) Imports: dplyr, ggdist, ggokabeito, ggplot2, methods, posterior, purrr, Rcpp (>= 0.12.0), RcppParallel (>= 5.0.1), rstan (>= 2.18.1), rstantools (>= 2.4) LinkingTo: BH (>= 1.66.0), Rcpp (>= 0.12.0), RcppEigen (>= 0.3.3.3.0), RcppParallel (>= 5.0.1), rstan (>= 2.18.1), StanHeaders (>= 2.18.0) SystemRequirements: GNU make LazyData: true Suggests: testthat (>= 3.0.0) Config/testthat/edition: 3 Config/Needs/website: rmarkdown NeedsCompilation: yes Packaged: 2026-10-29 09:58:40 UTC; root Author: Matthias Kloft [aut, cre, cph] (ORCID: ), Björn S. Siepe [aut] (ORCID: ) Config/pak/sysreqs: make Repository: https://cran.r-universe.dev Date/Publication: 2025-07-08 09:20:02 UTC RemoteUrl: https://github.com/cran/intervalpsych RemoteRef: HEAD RemoteSha: a5057474bd5ebfb69b6f0909202c40a34ca49e8c