TEST AND ITEM ANALYSIS

ShinyItemAnalysis Version 0.1

This application is developed with Shiny.


Authors

Patricia Martinkova, Institute of Computer Science, Czech Academy of Sciences

Ondrej Leder

List of Packages Used
library(shiny)
library(shinyAce)
library(psych)
library(CTT)
library(ltm)
library(moments)
library(foreign)
library(nnet)
library(ggplot2)
library(reshape2)
library(psychometric)

Bug Reports

If you discover a problem with this application please contact the project maintainer at martinkova(at)cs.cas.cz

Acknowledgments

Project was supported by grant funded by Czech Science foundation under number GJ15-15856Y

License

Copyright 2015 Patricia Martinkova and Ondrej Leder

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.


Data Specification


Data Check

Key

Score 0-1

Summary of Total Scores

Histogram of Total Scores

Boxplot of Total Scores

Histogram of Total Score by Points

Table by Score

Difficulty Graph

Explanation: Difficulty of item is estimated as percent of students who answered correctly to that item. Discrimination is described by ULI (Upper-Lower Index) and by rule of thumb it should not be lower than 0.2 (borderline in the plot), except for very easy or very difficult items.

Item Exam

Table with Counts

Table with Proportions

Plot with Curve

Table of parametres

Plot with Curve

Table of parametres

Plot with Curve

Plot with Curve

Table of parametres

Plot with Curve

Item information curves

Test information function

Table of coefficients

Item characterisic curves

Item information curves

Test information function

Table of coefficients

Item characterisic curves

Item information curves

Test information function

Table of coefficients