Practical Applications of Posterior Predictive Model Checking for Assessing Fit of Common Item Response Theory Models IRT
- Author(s):
- Sinharay, Sandip
- Publication Year:
- 2003
- Report Number:
- RR-03-33
- Source:
- ETS Research Report
- Document Type:
- Report
- Page Count:
- 38
- Subject/Key Words:
- Bayesian Methods, Discrepancy Measures, Log Odds Ratios, P-Values, Test Speededness, Unidimensionality, Item Response Theory (IRT)
Abstract
This paper also uses the discrepancy measures that are found useful in other work cited. The posterior predictive model checking method seems to be promising in detecting different types of misfit of the common IRT models in real applications.
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- http://dx.doi.org/10.1002/j.2333-8504.2003.tb01925.x