Shiny Web Interfaces and Gadgets

These functions provide easy-to-use web interfaces and gadgets to explore, analize, and report results of multiple-choice tests.

explore

Run MC Test Analysis App

createReportGadget report

Create a report using a dialogue window

loadDataGadget

Load Data via Shiny Gadget

Load and Analyze Multiple-Choice Test Data

loadTestData loadAnswerKey loadAllData

MC Test Analysis Data

generateExampleData

Generate Example Test Data

createReport

Create MC Test Analysis Report

addAlpha

Add Cronbach Alpha to MC Test Data Object

addDiscriminationIndex

Calculate Conventional Item Discrimination Index

addEFA

Exploratory Factor Analysis

addIRTfits

Add Item Response Theory Model Fits

addItemAnalysis

Add item analysis to MC Test Data Object

addItemScore

Add item score to MC Test Data Object

addPBCC

Point-Biserial Correlation Coefficient

addPBCCmodified

Modified Point-Biserial Correlation Coefficient

addSubscaleConcept

Calculate Subscale Alpha and Scores

addTetrachoric

Add Tetrachoric Correlation

Summary Plots

plotDiscriminationDifficulty

Plot Discrimination Index vs Difficulty Index

plotDistractors

Plot Distractor Analysis

plotOverallHistogram

Plot a histogram of overall test scores

plotScree

Scree Plot

plotTestScoreByQuestion

Plot Overall Test Score by Question and Correctness

plotTetrachoric

Plot Tetrachoric Correlations

Summary Tables

recommendItemActions

Recommend review actions for each item

summarizeCTT

Summarize Classic Test Theory Results

summarizeDistractors

Summarize Distractor Analysis

summarizeEFA

Summarize Exploratory Factor Analysis

summarizeIRT

Summarize IRT Model Results

summarizeSelectedOptions

Summarize Option Selection per Question