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Item Selection Criteria With Practical Constraints in Cognitive Diagnostic Computerized Adaptive Testing

机译:物品选择标准,具有实际约束在认知诊断计算机化自适应测试中

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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.
机译:对于在认知诊断计算机化自适应测试(CD-CAT)中的项目选择,理想情况下,应创建单个项目选择索引以同时调节精度,曝光状态和属性平衡。 为此目的,在本研究中,我们首先提出了一个属性平衡的项目选择标准,即标准化的加权偏差全局鉴别指数(SWDGDI),随后通过以逐步算法铸造SWDGDI来制定受约束的渐进指数(CP_SWDGDI) 。 模拟研究表明,SWDGDI方法在平衡属性覆盖范围内有效,CP_SWDGDI方法能够同时平衡属性覆盖和项目池使用,同时保持可接受的估计精度。 该研究还展示了CD-CAT应用中相对较少的属性的优势。

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