Several person-fit statistics (PFSs) are offered. These statistics allow assessing whether individual response patterns to tests or questionnaires are (im)plausible given the other respondents in the sample or given a specified item response theory model. Some PFSs apply to dichotomous data, such as the likelihood-based PFSs (lz, lz*) and the group-based PFSs (personal biserial correlation, caution index, (normed) number of Guttman errors, agreement/disagreement/dependability statistics, U3, ZU3, NCI, Ht). PFSs suitable to polytomous data include extensions of lz, U3, and (normed) number of Guttman errors.
|Author||Jorge N. Tendeiro|
|Date of publication||2016-10-18 15:04:11|
|Maintainer||Jorge N. Tendeiro <email@example.com>|
|License||GPL (>= 2)|
ADE.KB: Agreement, disagreement, and dependability statistics
C.index: C.Sato, Cstar person-fit statistics
cutoff: Compute a cutoff value given the scores of a person-fit...
flagged.resp: Find (potentially) aberrant response patterns
G: Number of Guttman errors
Gpoly: Number of Guttman errors for polytomous items
Ht: Ht person-fit statistic
InadequacyData: The NPV-J inadequacy scale data
IntelligenceData: Intelligence data (number completion)
lz: lz and lzstar person-fit statistics
lzpoly: lzpoly person-fit statistic
NCI: NCI person-fit statistic
PerFit-package: Person Fit
PerFitPFS: Compute several person-fit statistics
PerFitSE: Compute standard errors for person fit statistics
PhysFuncData: The SF-36 physical functioning data
plot.PerFit: Plot method for objects of class "PerFit"
PRFplot: Person response function (PRF)
print.PerFit: Print method for objects of class "PerFit"
r.pbis: Personal biserial statistic
summary.PerFit: Summary method for objects of class "PerFit"
U3: U3, ZU3 person-fit statistics
U3poly: U3poly person-fit statistic