Note: Input values (either numeric or character) must be separated by tabs. Copy and paste from Excel.
Input answer keys (Either numeric or character, separated by tabs.):
Only the first 10 observations are displayed.
If you want to download the converted data, use Binary (1-0) Data Converter .
Item_Mean: item facility (IF)
I-R_Correl: Item-Remainder score correlation or "corrected item-total correlation"
I-T_Correl: Item-Total score correlation or "point-biserial correlation"
U-L_DISC: item discrimination (upper 1/3 - lower 1/3)
AENO: actual equivalant number of options (out of the total number of options)
CTTShiny Version 0.1
The goal of this project is to help students and researchers run CTT analysis as easily as possible.
This application is developed with Shiny.
The code for this application is available at this GitHub.
If you're having problems with IRTShiny feel free to refer to our GitHub wiki or the documentation available on CRAN.CRAN page for CTTShiny
As always you are more than welcome to contact the project maintainer at firstname.lastname@example.org
William Kyle Hamilton maintains this application and has authored new features.
Atsushi Mizumoto wrote the first version of this application; this application is a fork of the original which can be found here
If you discover a problem with IRTShiny please submit it to the project GitHub page
CTTShiny is an Open Source project, you are more than welcome to submit patches or features and help the project grow.License
CTTShiny: Classical Test Theory with Shiny
Copyright 2015 William Kyle Hamilton and Atsushi Mizumoto
This program is free software you can redistribute it and or modify it under the terms of the GNU General Public License as published by the Free Software Foundation either version 3 of the License or at your option any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see
If you would like to learn more about the GNU General Public License and what it means tl'dr legal has a simple explaination which can be found here