PerFit: Person Fit

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.

Install the latest version of this package by entering the following in R:
AuthorJorge N. Tendeiro
Date of publication2016-10-18 15:04:11
MaintainerJorge N. Tendeiro <>
LicenseGPL (>= 2)

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A.KB Man page
C.Sato Man page
Cstar Man page
cutoff Man page
D.KB Man page
E.KB Man page
flagged.resp Man page
G Man page
Gnormed Man page
Gnormed.poly Man page
Gpoly Man page
Ht Man page
InadequacyData Man page
IntelligenceData Man page
lz Man page
lzpoly Man page
lzstar Man page
NCI Man page
PerFit-package Man page
PerFit.PFS Man page
PerFit.SE Man page
PhysFuncData Man page
plot.PerFit Man page
PRFplot Man page
print.PerFit Man page
r.pbis Man page
summary.PerFit Man page
U3 Man page
U3poly Man page
ZU3 Man page

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