Submitted by zhenli on Wed, 08/12/2020 - 12:03
| Title | Item Selection Criteria With Practical Constraints in Cognitive Diagnostic Computerized Adaptive Testing |
| Publication Type | Journal Article |
| Year of Publication | 2019 |
| Authors | Lin, C-J, Chang, H-H |
| Journal | Educational and Psychological Measurement |
| Volume | 79 |
| Number | 2 |
| Pagination | 335-357 |
| Abstract | For item selection in cognitive diagnostic computerized adaptive testing (CD-CAT), ideally, a single item selection index should be created to simultaneously regulate precision, exposure status, and attribute balancing. For this purpose, in this study, we first proposed an attribute-balanced item selection criterion, namely, the standardized weighted deviation global discrimination index (SWDGDI), and subsequently formulated the constrained progressive index (CP\_SWDGDI) by casting the SWDGDI in a progressive algorithm. A simulation study revealed that the SWDGDI method was effective in balancing attribute coverage and the CP\_SWDGDI method was able to simultaneously balance attribute coverage and item pool usage while maintaining acceptable estimation precision. This research also demonstrates the advantage of a relatively low number of attributes in CD-CAT applications. |
| URL | https://doi.org/10.1177/0013164418790634 |
| DOI | 10.1177/0013164418790634 |