Comparison of Unidimensional and Multidimensional Approaches to IRT Parameter Estimation IRT ASSEST
- Author(s):
- Zhang, Jinming
- Publication Year:
- 2004
- Report Number:
- RR-04-44
- Source:
- ETS Research Report
- Document Type:
- Report
- Page Count:
- 41
- Subject/Key Words:
- Multidimensional Item Response Theory (MIRT), Item Response Theory (IRT), Mixed Simple Structure, Dimensionality, Approximate Simple Structure ESTimation (ASSEST)
Abstract
Further, the impact of violation of the simple structure assumption is also investigated. Specifically the correlation coefficient between subscales will be highly overestimated when the simple structure assumption is violated.
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- http://dx.doi.org/10.1002/j.2333-8504.2004.tb01971.x