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        *                                                             *
        *  Changes and Developments in the ShinyItemAnalysis Package  *
        *                                                             *
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- Changes in ShinyItemAnalysis 1.1.0 (2016-02-02) -
---------------------------------------------------

MAJOR UPDATES

  o  New overall appearence using shinythemes package.
  o  New datasets 'dataMedical()', 'dataMedicalkey()', 'dataMedicaltest()'
     were added into the package.
  o  New dataset is offered in example datasets inside the shiny app.
  o  Bug in Distractor plots for uploaded data was fixed.
  o  Calculation of Success Rate in Standard Scores was fixed.
  o  Differential Distractor Functioning detection method was added.
  o  Syntax of difNLR functions was edited to response to new version of
     package.
  o  Function plotDIFirt() was updated.
  o  Correlation structure section was added including correlation plot
     and scree plot.
  o  Pages structure was changed and updated.
  o  IRT models are now fitted by mirt package.
  o  Subsection IRT model selection was added into IRT models section.
  o  Wrigh maps were added for Rasch and 1PL IRT model.
  o  Bug in data upload was fixed.
  o  Subsection regression model selection was added into Regression
     section.


MINOR UPDATES

  o  Typos were fixed.
  o  Selected R code was updated.
  o  Description of data including uploading own data set was extended.
  o  Description of Standard scores was added.
  o  Lower panel was updated.
  o  Rasch model was added into IRT models section.
  o  Pearson correlation coefficient of factor scores and Z-scores were
     added for IRT models
  o  Reference list was expanded.
  o  Bug in multinomial regression for scored data was fixed.
  o  Bug in DDF for datasets withou DIF items was fixed.
  o  Selected code was updated.

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- Changes in ShinyItemAnalysis 1.0.0 (2016-11-25) -
---------------------------------------------------

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.

