Model selection for IRT equating of Testlet-based tests in the random groups design
The use of testlets in a test can cause multidimensionality and local item dependence (LID), which can result in inaccurate estimation of item parameters, and in turn compromise the quality of item response theory (IRT) true and observed score equating of testlet-based tests. Both unidimensional and...
| Main Author: | |
|---|---|
| Other Authors: | |
| Format: | Others |
| Language: | English |
| Published: |
University of Iowa
2014
|
| Subjects: | |
| Online Access: | https://ir.uiowa.edu/etd/1439 https://ir.uiowa.edu/cgi/viewcontent.cgi?article=5480&context=etd |