Wide range of methods
- Exploration of total and standard scores
- Validity and reliability
- Traditional item analysis
- Item analysis via extended logistic regression models
- Item analysis via IRT models
- Detection of differential item functioning
ShinyItemAnalysis
ShinyItemAnalysis is an R package and an interactive online application for the psychometric analysis of educational tests, psychological assessments, health-related and other types of multi-item measurements, or ratings from multiple raters. It was developed with the aim to support teaching of psychometric concepts, present psychometric research and to empower routine psychometric analysis.
ShinyItemAnalysis 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.
ShinyItemAnalysis offers automatic generation of HTML and PDF reports.
ShinyItemAnalysis is a free software and you can redistribute it and or modify it under the terms of the GNU GPL 3.
In your work, please, cite as
In Czech written papers you can also use
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 will be 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.
Save the date for Psychoco 2019! International workshop on Psychometric Computing Psychoco 2019 will take place on February 21 - 22 in Prague, Czech Republic. Stay tuned!
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!