contrastMatrix
(Package: difR) :
Contrast matrix for computing generalized Lord's chi-squared DIF statistic
This command sets the appropriate contrast matrix C for computing the generalized Lord's chi-squared statistics in the framework of DIF detection among multiple groups.
● Data Source:
CranContrib
● Keywords:
● Alias: contrastMatrix
●
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selectGenDif
(Package: difR) :
Selection of one of the DIF detection methods among multiple groups
This function performs DIF detection among multiple groups for one pre-specified method.
● Data Source:
CranContrib
● Keywords:
● Alias: selectGenDif
●
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RajuZ
(Package: difR) :
Raju's area DIF statistic
Calculates the Raju's statistics for DIF detection.
● Data Source:
CranContrib
● Keywords:
● Alias: RajuZ
●
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mantelHaenszel
(Package: difR) :
Mantel-Haenszel DIF statistic
Calculates Mantel-Haenszel statistics for DIF detection.
● Data Source:
CranContrib
● Keywords:
● Alias: mantelHaenszel
●
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difRaju
(Package: difR) :
Raju's area DIF method
Performs DIF detection using Raju's area method.
● Data Source:
CranContrib
● Keywords:
● Alias: difRaju, plot.Raj, print.Raj
●
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stdPDIF
(Package: difR) :
Standardization DIF statistic
Calculates standardized P-difference statistics for DIF detection.
● Data Source:
CranContrib
● Keywords:
● Alias: stdPDIF
●
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subtestLogistic
(Package: difR) :
Testing for DIF among subgroups with generalized logistic regression
Performs the Wald test to identify DIF items among a subset of groups of examinees, using the results of generalized logistic regression for all groups.
● Data Source:
CranContrib
● Keywords:
● Alias: print.subLogistic, subtestLogistic
●
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genLogistik
(Package: difR) :
Generalized logistic regression DIF statistic
Calculates the "generalized logistic regression" likelihood-ratio or Wald statistics for DIF detection among multiple groups.
● Data Source:
CranContrib
● Keywords:
● Alias: genLogistik
●
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difTID
(Package: difR) :
Transformed Item Difficulties (TID) DIF method
Performs DIF detection using Transformed Item Difficulties (TID) method.
● Data Source:
CranContrib
● Keywords:
● Alias: difTID, plot.TID, print.TID
●
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Logistik
(Package: difR) :
Logistic regression DIF statistic
Calculates the "logistic regression" likelihood-ratio statistics and effect sizes for DIF detection.
● Data Source:
CranContrib
● Keywords:
● Alias: Logistik
●
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