Ase1pl | Calculates the asymptotic variance for difficulty parameter... |
Ase2pl | Calculates the asymptotic covariance matrix of item parameter... |
Ase3pl | Calculates the asymptotic covariance matrix of item parameter... |
AseIrt | Calculates the asymptotic covariance matrices for item... |
Bound3PlIpr | Takes item parameters from Ipr and forces guessing to lie... |
Bound4PlIpr | Takes item parameters from Ipr and forces guessing to lie... |
Calculate1plProb | Calculates the item success probability under the 1PL model. |
Calculate2plProb | Calculates the item success probability under the 2PL model. |
Calculate3plProb | Calculates the item success probability under the 3PL model. |
Calculate4plProb | Calculates the item success probability under the 4PL model. |
CalculateGrmExp | Calculates the expected item score under the GRM model. |
CalculateItemDifferences | Calculates the differences between two item option... |
CalculatePcmExp | Calculates the expected item score under the (G)PCM model. |
Cdif | Calculates CDIF index for an item with given item parameters... |
CheckDiscriminations | Identifies items with nonpositive discrimination |
CheckGuessings | Identifies items with guessing outside [0, 1] |
CheckUpper | Identifies items with upper asymptote outside [0, 1] |
CrossedProbabilities | Calculates the crossed probabilities associated with the... |
CutoffIpr | Cut-off points for Ipr generated estimates |
DeltaMhIrt | Obtains the ETS Delta measure for Mantel-Haneszel DIF... |
DFIT | Differential Functioning of Items and Tests framework |
dichotomousItemParameters | Sets of focal and reference item parameters from Wright... |
Dtf | Calculates DTF index for a set of items with given item... |
Extract2PLMirt | Extract item discrimination and difficulties and estimate... |
Extract3PLMirt | Extract item discrimination, difficulties, and guessing... |
Extract4PLMirt | Extract item discrimination, difficulties, guessing, and... |
ExtractGPCMMirt | Extract item discrimination and difficulties and estimate... |
ExtractGRMMirt | Extract item discrimination and difficulties and estimate... |
ExtractMirtPars | Extracts the item parameters from a unidimensional mirt model |
ExtractRaschMirt | Extract item difficulties and item difficulty variance... |
Ipr | Item parameter replication |
IprMh | Mantel Haenszel for Item parameter replication |
IprNcdif | NCDIF for Item parameter replication |
IprSam | Signed Area Measure for Item parameter replication |
IprUam | Unsigned Area Measure for Item parameter replication |
IrtMh | Calculates the Mantel-Haenszel theoretical parameter when a... |
Ncdif | Calculates NCDIF index for an item with given item parameters... |
PlotNcdif | Plot the item characteristic (expected score) curve for focal... |
polytomousItemParameters | Sets of focal and reference item parameters from Raju et al.... |
ProductProbabilities | Calculates the product of item response probabilities for... |
SignedArea | Calculates Raju's Signed Area Measure index for an item with... |
UnsignedArea | Calculates Raju's Unsigned Area Measure index for an item... |
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