A Graphical User Interface for Dexter

Classical Test and Item analysis, Item Response analysis and data management for educational and psychological tests.

Dextergui is a graphical user interface for the main functionality of dexter for use in educational and psychological measurement. It offers Classical Test Analysis, Item Response Theory and Data management.



or for the development version


If you encounter a bug, please post a minimal reproducible example on github.



This will open the user interface window in a shiny window. Switch to a Chrome, Firefox or Brave browser for best results*. You must start a new project or open an existing project before more options will become available. For more information look on the help page in dextergui or read the vignette.

* it also works in Internet Explorer but it does not work in Microsoft Edge. Not tested in Safari, Opera or other browsers.


dextergui 0.1.6

  • import normalized response data

dextergui 0.1.5

  • Added example data sets
  • new feature: plausible values

dextergui 0.1.4

  • slightly improved help
  • bugfix for a breaking change in shinyFiles 0.7.0
  • small change to accomodate a new ggplot2 release

dextergui 0.1.3

  • re-uploaded after being removed from Cran, no significant changes

dextergui 0.1.2

  • bugfix: importing .csv files now works

  • enhancement: can import .ods files

  • enhancement: hide parts of interface that are not useful until data is imported

dextergui 0.1.1

A Shiny application for educational data management and application of Classical Test Theory and Item Response Theory

  • start with dextergui()

Reference manual

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0.2.2 by jesse koops, a year ago

Report a bug at https://github.com/jessekps/dexter/issues

Browse source code at https://github.com/cran/dextergui

Authors: jesse koops [aut, cre] , Eva de Schipper [aut] , Ivailo Partchev [aut, ctb] , Gunter Maris [aut, ctb] , Timo Bechger [aut, ctb] , Gareth Watts [aut, cph] (author of jquery.sparkline) , Hakim El Hattab [aut, cph] (author of zoom.js)

Documentation:   PDF Manual  

GPL-3 license

Imports shiny, shinyBS, DT, htmltools, htmlwidgets, shinyjs, shinyFiles, jsonlite, dplyr, tidyr, tibble, rlang, RCurl, DBI, readxl, writexl, readODS, ggplot2, ggExtra, ggridges, networkD3, Cairo, graphics, grDevices, methods, utils, tools

Depends on dexter

Suggests knitr, psych, sirt, MLCIRTwithin

See at CRAN