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birtr (version 1.0.0)

The R Package for "The Basics of Item Response Theory Using R"

Description

R functions for "The Basics of Item Response Theory Using R" by Frank B. Baker and Seock-Ho Kim (Springer, 2017, ISBN-13: 978-3-319-54204-1) including iccplot(), icccal(), icc(), iccfit(), groupinv(), tcc(), ability(), tif(), and rasch(). For example, iccplot() plots an item characteristic curve under the two-parameter logistic model.

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Version

Install

install.packages('birtr')

Monthly Downloads

256

Version

1.0.0

License

GPL (>= 2)

Maintainer

Seock-Ho Kim

Last Published

October 4th, 2017

Functions in birtr (1.0.0)

icccal

Item Characteristic Curve Calculations
iccfit

Item Characteristic Curve Fitting
ability

Ability Estimation
birtr

The R Package for "The Basics of Item Response Theory Using R"
iccplot

Item Characteristic Curve Plot
rasch

Rasch Model Calibration
groupinv

Group Invariance of Item Parameters
icc

Item Characteristic Curve
tcc

Test Characteristic Curve
tif

Test Information Function