thurstonianIRT (version 0.9.0)

thurstonianIRT-package: The 'thurstonianIRT' package.

Description

This package fits Thurstonian Item Response Theory (IRT) models using 'Stan', 'lavaan', or 'Mplus'. To bring your data into the right format, use the make_TIRT_data function. Models can then be fitted via fit_TIRT_stan, fit_TIRT_lavaan, or fit_TIRT_mplus depending on the desired model fitting engine. Data from Thurstonian IRT models can be simulated via sim_TIRT_data.

Arguments

References

Brown, A., & Maydeu-Olivares, A. (2011). Item response modeling of forced-choice questionnaires. Educational and Psychological Measurement, 71(3), 460-502. doi:10.1177/0013164410375112

B<U+00FC>rkner P. C., Schulte N., & Holling H. (2019). On the Statistical and Practical Limitations of Thurstonian IRT Models. Educational and Psychological Measurement. doi:10.1177/0013164419832063