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xxIRT (version 2.0.3)

Practical Item Response Theory and Computer-Based Testing in R

Description

An implementation of item response theory and computer-based testing based on the 3-parameter-logistic (3PL) model, with functions to perform (i) parameter estimation, (2) automated test assembly, (3) computerized adaptive testing (CAT) simulation, and (4) multistage assembly and simulation. More documentation at .

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Install

install.packages('xxIRT')

Monthly Downloads

338

Version

2.0.3

License

GPL (>= 3)

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Repository

https://github.com/xluo11/xxIRT

Maintainer

Xiao Luo

Last Published

August 30th, 2017

Functions in xxIRT (2.0.3)

Computerized Adaptive Testing (CAT) Simulation

Estimation of 3PL Model

Automated Test Assembly (ATA)

ATA Helper Functions

IRT Utility Functions

MST Helper Functions

3-Parameter-Logistic Model

Computerized Multistage Testing (MST)

Root Mean Square Error