PerFit (1.4)

Person Fit.

http://cran.r-project.org/web/packages/PerFit

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.

Maintainer: Jorge N. Tendeiro
Author(s): Jorge N. Tendeiro

License: GPL (>= 2)

Uses: fda, Hmisc, irtoys, ltm, MASS, Matrix, mirt

Released over 4 years ago.