emIRT (0.0.8)

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EM Algorithms for Estimating Item Response Theory Models.

http://cran.r-project.org/web/packages/emIRT

Various Expectation-Maximization (EM) algorithms are implemented for item response theory (IRT) models. The current implementation includes IRT models for binary and ordinal responses, along with dynamic and hierarchical IRT models with binary responses. The latter two models are derived and implemented using variational EM. Subsequent edits also include variational network and text scaling models.

Maintainer: James Lo
Author(s): Kosuke Imai <kimai@princeton.edu>, James Lo <lojames@usc.edu>, Jonathan Olmsted <jpolmsted@gmail.com>

License: GPL (>= 3)

Uses: pscl, Rcpp

Released 6 months ago.


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