A comparison study of IRT calibration methods for mixed-format tests in vertical scaling
The purpose of this dissertation is to investigate how using different IRT calibration methods may affect student achievement growth pattern recovery. In this study, 96 vertical scales (4 × 2 × 2 × 2 ×3) are constructed using different combinations of IRT calibration methods (separate, pair-wise con...
| Main Author: | |
|---|---|
| Other Authors: | |
| Format: | Others |
| Language: | English |
| Published: |
University of Iowa
2007
|
| Subjects: | |
| Online Access: | https://ir.uiowa.edu/etd/338 https://ir.uiowa.edu/cgi/viewcontent.cgi?article=1523&context=etd |