Wide range of methods
- Latent trait estimation
- Reliability and measurement error analysis
- Validity and correlation structure
- Complex analysis of item functioning
- ... and more via add-on modules
ShinyItemAnalysis
ShinyItemAnalysis offers interactive psychometric analysis of educational tests, psychological and health-related assessments, and other types of multi-item/multi-rater measurements.
SIA provides model equations, parameter estimates and their interpretation.
All methods include sample R code which is ready to copy and paste into R and run locally.
Several toy data sets are ready to use. You can also upload and analyze your own data.
SIA offers automatic generation of HTML and PDF reports!
Register for the workshop on ShinyItemAnalysis modules at the
IMPS 2025 conference.
We are looking forward to meeting you there!
We will be presenting a workshop on analysis of multi-item measurements with R and ShinyItemAnalysis at the EAM 2025 conference. We are looking forward to meeting you there! Stay tuned for the upcoming details that will be published on the conference website.
{ShinyItemAnalysis} was updated to 1.5.4!
SIA Modules are now available for installation directly from the app's GUI (Modules tab), see our manuscript.
New estimation methods are implemented based on our recent paper.
See the changelog for the full list of changes and bugfixes.
Our work was presented at the International Meeting of Psychometric Society 2024,
hosted by our COMPS group.
More information is available at
https://www.psychometricsociety.org/imps-2024.
New preprint about SIA Modules was published on arXiv.
A brand new {SIAtools} R package was released! 🎉
SIAtools is a comprehensive suite of functions designed for constructing and managing
'ShinyItemAnalysis' modules, supplemented with detailed guides, ready-to-use templates,
linters, and tests. This package allows developers to seamlessly create and integrate
one or more modules into their existing packages or to start a new module project from
scratch.
See the accompanying {pkgdown} page at applstat.github.io/SIAtools.
{ShinyItemAnalysis} version 1.5.1 was released! 🎉
The SIA modules available at our new official CRAN-like repository
(shinyitemanalysis.org/repo) are now offered upon application
startup when run locally with run_app().
See the changelog for the full list of changes and bugfixes.
{SIAmodules} were updated to 0.1.1! 🎉
The new release resolves number of bugs and provides sample R code for the CAT module.
See the changelog for the full list of changes and bugfixes.
New book Computational Aspects of Psychometric Methods. With R published at CRC Press:
ShinyItemAnalysis version 1.5.0 was released! 🎉
The app is now extendable via add-on modules, new datasets were added, and DIF analysis now offers
combinations (simple and iterative) of purification and p value adjustment.
See the full changelog here.
A collection of ShinyItemAnalysis modules were released in a R package
SIAmodules. They are no longer hosted at a standalone webpage, but dynamicaly recognized and
added in ShinyItemAnalysis version ≥ 1.5.0 You can now create your own SIA module referring to the
SIAmodules source code. A companion tool to ease the creation is in the development. Stay tuned!
Version 1.4.2 was released on CRAN. See the full
changelog here.
Version 1.4.1 was released on CRAN. See the full
changelog here.
Version 1.4.0 was released on CRAN. See the full
changelog here.
Job openings advertized for
Postdoctoral / Research fellow and RA positions in Computational Psychometrics and Statistics in Prague.
Join us!
SIA module on range-restricted IRR is available on https://shiny.cs.cas.cz/ShinyItemAnalysis-module-IRRrestricted
SIA module on DIF-C is available on https://shiny.cs.cas.cz/ShinyItemAnalysis-module-DIF-C-ordinal/
ShinyItemAnalysis was presented at useR!2021, in talk on "Teaching computational aspects of psychometrics with R
and Shiny". See the slides and the video!
New version of ShinyItemAnalysis
app is available online.
R package ShinyItemAnalysis version 1.3.7 on CRAN now!
ShinyItemAnalysis includes data and interactive demonstration study on restricted-range reliability published in Journal of the Royal Statistical Society Series A.
ShinyItemAnalysis featured in recent paper on DIF detection with the difNLR package, published in The R journal.
ShinyItemAnalysis includes data and interactive demonstration for recent study on propensity score
matching and differential item change functioning analysis, published in Learning and
Instruction journal.
Workshop Introduction to Differential
Item Functioning (DIF) analysis with R and ShinyItemAnalysis was held at AEA-Europe conference
in Lisabon!
New paper about ShinyItemAnalysis was published in The R Journal.
ShinyItemAnalysis presented at International Meeting of Psychometric Society 2018 in New York.
See the poster here.
International workshop on Psychometric Computing Psychoco 2019, took place on February 21 - 22 in Prague, Czech Republic.
Czech article ShinyItemAnalysis: Analyzing admission and other educational and psychological tests has been published in journal TESTFÓRUM.
Video of useR!2017 talk on "Teaching psychometrics and analysing educational tests with
ShinyItemAnalysis" is
ONLINE now! Enjoy!
ShinyItemAnalysis is a free software and you can redistribute it and or modify it under the terms of the GNU GPL 3. When using ShinyItemAnalysis software, we appreciate if you include a reference in your publications. To cite the software, please, use: