guttmanErrors: Calculate Guttman errors

In GetR: GetR: Calculate Guttman error trees in R

Description

The function returns the number of Guttman errors for each participant.

Usage

guttmanErrors(data)

Arguments

data	a matrix or data.frame which comprises the participant's responses.

Details

Function was adapted from the mokken Package (van der Ark, 2007).

Value

Numeric vector with the number of Guttman errors per participant.

References

Van der Ark, L. A. (2007) Mokken scale analysis in R. Journal of Statistical Software. http://www.jstatsoft.org/v20/i11

Examples

data(Communality)
ge <- guttmanErrors(Communality[,1:10])
hist(ge)

Example output

Loading required package: party
Loading required package: grid
Loading required package: mvtnorm
Loading required package: modeltools
Loading required package: stats4
Loading required package: strucchange
Loading required package: zoo

Attaching package: 'zoo'

The following objects are masked from 'package:base':

    as.Date, as.Date.numeric

Loading required package: sandwich

Attaching package: 'GetR'

The following object is masked from 'package:grid':

    gTree

GetR documentation built on May 2, 2019, 12:38 p.m.