Man pages for DFIT
Differential Functioning of Items and Tests

Ase1plCalculates the asymptotic variance for difficulty parameter...
Ase2plCalculates the asymptotic covariance matrix of item parameter...
Ase3plCalculates the asymptotic covariance matrix of item parameter...
AseIrtCalculates the asymptotic covariance matrices for item...
Bound3PlIprTakes item parameters frp, Ipr and forces guessing to lie...
Calculate1plProbCalculates the item success probability under the 1PL model.
Calculate2plProbCalculates the item success probability under the 2PL model.
Calculate3plProbCalculates the item success probability under the 3PL model.
CalculateGrmExpCalculates the expected item score under the GRM model.
CalculateItemDifferencesCalculates the differences between two item option...
CalculatePcmExpCalculates the expected item score under the (G)PCM model.
CdifCalculates CDIF index for an item with given item parameters...
CrossedProbabilitiesCalculates the crossed probabilities associated with the...
CutoffIprCut-off points for Ipr generated estimates
DeltaMhIrtObtains the ETS Delta measure for Mantel-Haneszel DIF...
DFITDifferential Functioning of Items and Tests framework
dichotomousItemParametersSets of focal and reference item parameters from Wright...
DtfCalculates DTF index for a set of items with given item...
IprItem parameter replication
IprMhMantel Haenszel for Item parameter replication
IprNcdifNCDIF for Item parameter replication
IprSamSigned Area Measure for Item parameter replication
IprUamUnsigned Area Measure for Item parameter replication
IrtMhCalculates the Mantel-Haenszel theoretical parameter when a...
NcdifCalculates NCDIF index for an item with given item parameters...
PlotNcdifPlot the item characteristic (expected score) curve for focal...
polytomousItemParametersSets of focal and reference item parameters from Raju et al....
ProductProbabilitiesCalculates the product of item response probabilities for...
SignedAreaCalculates Raju's Signed Area Measure index for an item with...
UnsignedAreaCalculates Raju's Unsigned Area Measure index for an item...
DFIT documentation built on May 29, 2017, 10:31 p.m.