EstCRM (1.1)

Calibrating Parameters for the Samejima's Continuous IRT Model.

This package includes the tools to estimate item and person parameters for the Samejima's Continuous Response Model (CRM) via Marginal Maximum Likelihood and EM algorithm, to compute item fit residual statistics, to draw empirical 3D item category response curves, to draw theoretical 3D item category response curves, and to generate data under the CRM for simulation studies.

Maintainer: Cengiz Zopluoglu
Author(s): Cengiz Zopluoglu <>

License: GPL-2

Uses: Hmisc, lattice

Released over 8 years ago.