Validation and analysis of the coupled multiple response Colorado upper-division electrostatics (CUE) diagnostic
Validation and analysis of the coupled multiple response Colorado upper-division electrostatics (CUE) diagnostic
复制标题
耦合多重响应科罗拉多上分区静电 (CUE) 诊断的验证和分析
DOI：
10.1103/physrevstper.11.020130
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
S. Pollock
中科院分区：
文献类型：
--
作者：
Bethany R. Wilcox;S. Pollock
标准化的概念评估是一个广泛使用的工具，教育研究人员有兴趣在标准的本科物理课程的学生学习。例如，这些评估通常用于衡量学生在教育环境和教学策略中的学习情况。然而，为了支持跨机构测试所需的大规模实施，这些工具必须具有便于评分的问题格式。之前，我们创建了一个现有的，经过验证的，上师静电诊断的多响应版本，目的是增加仪器的大规模实施的潜力。在这里，我们报告的有效性和可靠性，这个新版本作为一个独立的工具。这些研究结果建立了多重响应版本的有效性，测量多个测试统计，包括项目难度，项目歧视，和内部一致性。此外，我们表明，大多数学生的反应，新版本是内部一致的，即使他们是不正确的，并提供了一个例子，如何使用新的格式可以用来深入了解学生的困难与具体内容的静电。
Standardized conceptual assessment represents a widely-used tool for educational researchers interested in student learning within the standard undergraduate physics curriculum. For example, these assessments are often used to measure student learning across educational contexts and instructional strategies. However, to support the large-scale implementation often required for cross-institutional testing, it is necessary for these instruments to have question formats that facilitate easy grading. Previously, we created a multiple-response version of an existing, validated, upper-division electrostatics diagnostic with the goal of increasing the instrument's potential for large-scale implementation. Here, we report on the validity and reliability of this new version as an independent instrument. These findings establish the validity of the multiple-response version as measured by multiple test statistics including item difficulty, item discrimination, and internal consistency. Moreover, we demonstrate that the majority of student responses to the new version are internally consistent even when they are incorrect, and provide an example of how the new format can be used to gain insight into student difficulties with specific content in electrostatics.