# Rasch Model Parameters by Pairwise Algorithm

## Documentation for package ‘pairwise’ version 0.4.4-7

- DESCRIPTION file.
- User guides, package vignettes and other documentation.
- Package NEWS.

## Help Pages

pairwise-package | Rasch Model Parameters with pairwise
andersentest.pers | Andersen's Likelihood Ratio Test for Object of class "pers"
bfiN | 5 polytomous personality items
bfiN_miss | 5 polytomous personality items
bfi_cov | Covariates to the bfiN Data
catprob | Category Probability Plots
cog | Math PISA (2003) data
cogBOOKLET | Booklet allocation table for Math PISA (2003) data
deltapar | Compute delta parameters from thurstonian thresholds
DEU_PISA2012 | Data from PISA 2012 - German Sample
esc | Expected Score Curves Plots
ftab | Tabulating Answer Categories in Data
gif | Graphical Item Fit Plots
grm | Graphical Model Check
iff | Item information function
kft5 | Dichotomous example data in Rost 2004
logLik.pers | S3 logLik for Object of class "pers"
lrtest.pers | Likelihood Ratio Test for Object of class "pers"
make.incidenz | Converting a booklet allocation table into a incidence matrix
Neoffi5 | Polytomous example data in Rost 2004
pair | Rasch Item Parameter (Main Function)
pairSE | Item Parameter calculation with Standard Errors for polytomous Partial Credit Model
pairwise | Rasch Model Parameters with pairwise
pairwise.item.fit | Item Fit Indices
pairwise.person.fit | Person Fit Indices
pairwise.S | The Fischer-Scheiblechner Statistic S on item level (Wald like Test)
pers | WLE - Rasch Person Parameter
plot.grm | S3 Plotting Graphical Model Check
plot.pair | S3 Plotting Thurstonian Thresholds
plot.pairSE | S3 Plotting Thustonian Thresholds with SE
plot.pers | S3 Plotting Person - Item Map
plot.rfa | S3 Plotting Rasch Residual Factor Analysis
ptbis | Point Biserial Correlations
Q | Person Fit Index Q
q3 | Q3 Fit Statistic
rfa | Rasch Residual Factor Analysis
sim200x3 | Simulated Data
simra | Simulate Response Pattern under Dichotomous and Polytomous Rasch Model
summary.grm | S3 Summary for graphical Model Check
summary.pair | S3 Summary for item parameter
summary.pairS | S3 Summary for S-statistic Test (Wald Test)
summary.pairSE | S3 Summary for item parameter with standard errors
summary.pers | S3 Summary for Thetas
summary.pifit | S3 Summary for Item-Fit-Statistics
summary.ppfit | S3 Summary for Person-Fit-Statistics
summary.rfa | S3 Summary for rasch factor analysis
tff | Test information function