PERC 2024 Abstract Detail Page
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| Abstract Title: | Redesigning Legacy Conceptual Inventories: Validation Framework for 1-D Kinematic Items |
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| Abstract Type: | Contributed Poster Presentation |
| Abstract: | In the ongoing effort to develop a new concept inventory of Newtonian mechanics, context neutral 1-D kinematic items were given to students at three universities. A validation framework for items is being developed which utilizes classical test theory, item response theory, differential item functioning, differential distractor functioning, exploratory factor analysis, and confirmatory factor analysis to provide a standardized way of quantitatively validating items in a concept inventory. Item difficulty and item discrimination from classical test theory are assessed using max item discrimination. Item point-biserial correlation coefficients and inter-item max phi correlation coefficients are calculated. Exam Kuder-Richardson Formula 20 with the item removed is compared with the full exam Kuder Richardson Formula 20. Item Response Curves are analyzed for various item response theory models. The Mantel-Haenszel Test is used for differential item functioning detection on these items. Additionally, exploratory factor analysis results are analyzed and theoretical factor models are tested using confirmatory factor analysis. |
| Session Time: | Poster Session 1 |
| Poster Number: | A14 |
Author/Organizer Information | |
| Primary Contact: |
Brett Ballard West Virginia University |
