Data loading & descriptive functions

loadData()

Load data from supplied config

runFrequency()

Obtain a frequency table

runDescriptive()

Obtain a descriptive statistics table

runClassical()

Run CTT-based reliability analysis

runCFA()

Run a confirmatory factor analysis

Item parameter linking functions

Functions for metric-matching of item parameters

runLinking()

Run Scale Linking

runRSSS()

Compute Crosswalk Tables

runCalibration()

Run Calibration

Observed score equating functions

Functions for metric-matching of observed scores

runEquateObserved()

Run Test Equating

Web GUI

PROsetta() guiPROsetta()

PROsetta

Helper functions

plotInfo()

Plot scale information

plot(<PROsetta_data>,<ANY>)

Plot frequency distribution

getItemNames()

Get item names

getResponse()

Extract scale-wise response

getCompleteData()

Get complete data

getEscore()

Calculate expected scores at theta

getScaleSum()

Calculate raw sum scores of a scale

getTheta()

Obtain EAP estimates

compareScores()

Compare two sets of scores

checkFrequency()

Check frequency table for unobserved response categories

Example datasets

dataset_asq

ASQ dataset

dataset_dep

DEP dataset