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PerFit (version 1.2)

Person Fit

Description

PerFit contains several person fit indices that allow assessing whether individual response patterns to tests or questionnaires are (im)plausible given the other respondents in the sample or a specified Item Response Theory model.

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Version

Install

install.packages('PerFit')

Monthly Downloads

380

Version

1.2

License

GPL (>= 2)

Maintainer

Jorge Tendeiro

Last Published

October 7th, 2014

Functions in PerFit (1.2)

Ht statistic

Ht person-fit statistic

Gpoly, Gnormed.poly

Number of Guttman errors for polytomous items

PerFit-package

Person Fit

NCI statistic

NCI person-fit statistic

cutoff

Compute a cutoff value given the scores of a person-fit statistic

PRFplot

Person response function (PRF)

The caution statistic

C.Sato, Cstar person-fit statistics

lz, lzstar

lz and lzstar person-fit statistics

flagged.resp

Find (potentially) aberrant response patterns

Inadequacy scale data

The NPV-J inadequacy scale data

lzpoly

lzpoly person-fit statistic

Personal biserial statistic

plot PerFit

Plot method for objects of class "PerFit"

A, D, E statistics

Agreement, disagreement, and dependability statistics

Physical Functioning

The SF-36 physical functioning data

Intelligence data

Intelligence data (number completion)

U3, ZU3

U3, ZU3 person-fit statistics

U3poly

U3poly person-fit statistic

G, Gnormed

Number of Guttman errors