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All EXAMPLES (zip file)
Unidimensional Examples
Links to examples (PDF format):
1PL, 2PL, a special model with equality constraints, and trace lines and information curves for a 2PL model
DIF Analysis – Complete Example
Multiple groups (unidimensional) – Complete Example
Scoring with IRTPRO – Complete Example
Download Zip file with example files
Multidimensional Examples
Links to examples (PDF format):
Multidimensional analysis of the AACL data
Exploratory factor analysis and bifactor analysis
MCMC, multiple groups confirmatory factor analysis, MCMC graphics and simulation studies
Zip file with example files
Testlet Response Theory and two-tier analysis
Download Zip file with example files
Other examples
Traditional examples (zip file)
By Dataset examples (zip file)
IRT simulation
Fixed Theta estimation
Zip file with example files