I-Biostat Software Latent Trait and Latent Class Analysis

Software - Latent Trait and Latent Class Analysis

This section contains models in the area of Latent Trait and Latent Class Analysis.
For software in other areas, go to the general overview of software.

For Latent Trait and Latent Class Analysis, the following software is available:

R PACKAGE FOR FITTING LATENT TRAIT MODELS UNDER THE ITEM RESPONSE THEORY APPROACH
Program: ltm	Version: 0.7-0	Software: R	Version: >=2.3.0	Last updated: 01/12/2006
Prepared by:	Dimitris Rizopoulos
Description:	Analysis of multivariate dichotomous and polytomous data using latent trait models under the Item Response Theory approach. It includes the Rasch, the Two-Parameter Logistic, the Birnbaum's Three-Parameter, and the Graded Response Models. The source code, the Windows binary and the manual are available for download. The software is available under the GPL license version 2 or later. Also downloadable from CRAN. Documentation can also be found on Wiki and on www.jstatsoft.org.
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BAYESIAN LATENT CLASS ANALYSIS OF CONDITIONALLY DEPENDENT DIAGNOSTIC TESTS
Program: LCMS.zip	Version: 1	Software: R/Winbugs	Version: 2.3.1/1.4	Last updated: 09/05/2008
Prepared by:	Joris Menten
Description:	Example programs, functions, and data for fitting and assessing Bayesian latent class models with conditionally dependent diagnostic tests using WinBugs called from within R. Reference: Menten J., Boelaert M. and Lesaffre E. "Bayesian latent class models with conditionally dependent diagnostic tests: a case study." Accepted for publication in Statistics in Medicine (2008).
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