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pairwise (version 0.4.4-5.1)

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

0.4.4-5.1

License

GPL-3

Maintainer

Joerg-Henrik Heine

Last Published

January 31st, 2019

Functions in pairwise (0.4.4-5.1)

DEU_PISA2012

Data from PISA 2012 - German Sample
kft5

Dichotomous example data in Rost 2004
logLik.pers

S3 logLik for Object of class "pers"
pair

Rasch Item Parameter (Main Function)
pairSE

Item Parameter calculation with Standard Errors for polytomous Partial Credit Model
summary.pairSE

S3 Summary for item parameter with standard errors
summary.pairwise.item.fit

S3 Summary for Item-Fit-Statistics
Q

Person Fit Index Q
andersentest.pers

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

Math PISA (2003) data
deltapar

Compute delta parameters from thurstonian thresholds
cogBOOKLET

Booklet allocation table for Math PISA (2003) data
grm

Graphical Model Check
iff

Item information function
esc

Expected Score Curves Plots
bfiN

5 polytomous personality items
bfi_cov

Covariates to the bfiN Data
pairwise-package

Rasch Model Parameters with pairwise
catprob

Category Probability Plots
pairwise.S

The Fischer-Scheiblechner Statistic S on item level (Wald like Test)
rfa

Rasch Residual Factor Analysis
ftab

Tabulating Answer Categories in Data
bfiN_miss

5 polytomous personality items
gif

Graphical Item Fit Plots
summary.pair

S3 Summary for item parameter
summary.pair.S

S3 Summary for S-statistic Test (Wald Test)
sim200x3

Simulated Data
make.incidenz

Converting a booklet allocation table into a incidence matrix
pairwise.item.fit

Item Fit Indices
plot.rfa

S3 Plotting Rasch Residual Factor Analysis
plot.pers

S3 Plotting Person - Item Map
lrtest.pers

Likelihood Ratio Test for Object of class "pers"
pairwise.person.fit

Person Fit Indices
pers

WLE - Rasch Person Parameter
plot.grm

S3 Plotting Graphical Model Check
plot.pair

S3 Plotting Thurstonian Thresholds
simra

Simulate Response Pattern under Dichotomous and Polytomous Rasch Model
summary.grm

S3 Summary for graphical Model Check
tff

Test information function
summary.rfa

S3 Summary for rasch factor analysis
summary.pairwise.person.fit

S3 Summary for Person-Fit-Statistics
summary.pers

S3 Summary for Thetas
plot.pairSE

S3 Plotting Thustonian Thresholds with SE
ptbis

Point Biserial Correlations
q3

Q3 Fit Statistic
Neoffi5

Polytomous example data in Rost 2004