Modelling and Simulating Judgments of Frequency R package JoF version 0.1.0 In a typical experiment for the intuitive judgment of frequencies (JoF) different stimuli with different frequencies are presented. The participants consider these stimuli with a constant duration and give a judgment of frequency. These judgments can be simulated by formal models: PASS 1 and PASS 2 based on Sedlmeier (2002, ISBN:978-0198508632), MINERVA 2 baesd on Hintzman (1984) <doi:10.3758/BF03202365> and TODAM 2 based on Murdock, Smith & Bai (2001) <doi:10.1006/jmps.2000.1339>. The package provides an assessment of the frequency by determining the core aspects of these four models (attention, decay, and presented frequency) that can be compared to empirical results. Software Depends: R (>= 3.1.0) Suggests: testthat, knitr, rmarkdown Markus Burkhardt <markus.burkhardt@psychologie.tu-chemnitz.de> Comprehensive R Archive Network (CRAN) Markus Burkhardt [aut, cre] GPL-3 2020-04-03 application/tgz https://CRAN.R-project.org/package=JoF doi:10.32614/CRAN.package.JoF