Interactive shiny application for analysis of educational tests and their items.
Test and Item Analysis via Shiny.
Interactive shiny application for analysis of educational tests and their items including DIF detection.
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* Changes and Developments in the ShinyItemAnalysis Package *
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UPDATES
o New graphical representation via ggplot2 package o Cronbach's alpha was added o Distractor analysis was extended o More DIF detection methods were added Mantel-Haenszel test, Logistic regression, Lord's and Raju's statistic for IRT models all are now used via difR package o Delta plots were extended: fixed and normal threshold are now allowed o Multiple comparison correction methods were added into DIF detection procedures o More examples of datasets were added from difNLR package o References were added o New functions were added into the package: - 'DDplot()' function for graphical representation of difficulties and discriminations. - 'DistractorAnalysis()' function and its graphical representation 'plotDistractorAnalysis()'. - 'plotDIFirt()' and 'plotDIFLogistic()' functions for plotting characteristic curves based on IRT models and based on logistic regression.