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pairwise (version 0.3.1)

Rasch Model Parameters by Pairwise Algorithm

Description

Performs the explicit calculation -- not estimation! -- of the Rasch item parameters for dichotomous and polytomous item responses, using a pairwise comparison approach. Person parameters (WLE) are calculated according to Warm's weighted likelihood approach.

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Version

Install

install.packages('pairwise')

Monthly Downloads

524

Version

0.3.1

License

GPL-3

Maintainer

Joerg-Henrik Heine

Last Published

December 3rd, 2015

Functions in pairwise (0.3.1)

DEU_PISA2012

Data from PISA 2012 - German Sample
plot.pers

S3 Plotting Person - Item Map
summary.rfa

S3 Summary for rasch factor analysis
ftab

Tabulating Answer Categories in Data
pair

Rasch Item Parameter (Main Function)
cog

Math PISA (2003) data
pairSE

Item Parameter calculation with Standard Errors for polytomous Partial Credit Model
bfiN_miss

5 polytomous personality items
esc

Expected Score Curves Plots
plot.rfa

S3 Plotting Rasch Residual Factor Analysis
iff

Item information function
grm

Graphical Model Check
bfi_cov

Covariates to the bfiN Data
pairwise-package

Rasch Model Parameters with pairwise
summary.pairwise.person.fit

S3 Summary for Person-Fit-Statistics
plot.pairSE

S3 Plotting Thustonian Thresholds with SE
cogBOOKLET

Booklet allocation table for Math PISA (2003) data
Neoffi5

Polytomous example data in Rost 2004
summary.pers

S3 Summary for Thetas
ptbis

Point Biserial Correlations
summary.pair

S3 Summary for item parameter
simra

Simulate Response Pattern under Dichotomous and Polytomous Rasch Model
pers

WLE - Rasch Person Parameter
kft5

Dichotomous example data in Rost 2004
summary.pairSE

S3 Summary for item parameter with standard errors
plot.grm

S3 Plotting Graphical Model Check
pairwise.item.fit

Item Fit Indices
sim200x3

Simulated Data
make.incidenz

Converting a booklet allocation table into a incidence matrix
lrtest.pers

Likelihood Ratio Test for Object of class "pers"
andersentest.pers

Andersen's Likelihood Ratio Test for Object of class "pers"
catprob

Category Probability Plots
summary.pairwise.item.fit

S3 Summary for Item-Fit-Statistics
tff

Test information function
rfa

Rasch Residual Factor Analysis
summary.grm

S3 Summary for graphical Model Check
bfiN

5 polytomous personality items
plot.pair

S3 Plotting Thurstonian Thresholds
gif

Graphical Item Fit Plots
logLik.pers

S3 logLik for Object of class "pers"
pairwise.person.fit

Person Fit Indices