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.
| Version: |
1.4 |
| Depends: |
ltm, mirt |
| Imports: |
stats, graphics, fda, Hmisc, irtoys, MASS, Matrix |
| Published: |
2015-07-20 |
| Author: |
Jorge N. Tendeiro |
| Maintainer: |
Jorge N. Tendeiro <j.n.tendeiro at rug.nl> |
| License: |
GPL-2 | GPL-3 [expanded from: GPL (≥ 2)] |
| NeedsCompilation: |
no |
| CRAN checks: |
PerFit results |
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