Back to Search
Start Over
Item Selection Criteria With Practical Constraints in Cognitive Diagnostic Computerized Adaptive Testing.
- Source :
-
Educational & Psychological Measurement . Apr2019, Vol. 79 Issue 2, p335-357. 23p. - Publication Year :
- 2019
-
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. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00131644
- Volume :
- 79
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- Educational & Psychological Measurement
- Publication Type :
- Academic Journal
- Accession number :
- 135387983
- Full Text :
- https://doi.org/10.1177/0013164418790634