Evaluating an electricity and magnetism assessment tool: Brief electricity and magnetism assessment
Evaluating an electricity and magnetism assessment tool: Brief electricity and magnetism assessment
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DOI：
10.1103/physrevstper.2.010105
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发表时间：
2006-01-01
影响因子：
--
通讯作者：
Beichner, Robert
中科院分区：
文献类型：
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作者：
Ding, Lin;Chabay, Ruth;Beichner, Robert
由Chabay和舍伍德开发的简要电磁评估（BEMA）旨在评估学生对大学水平微积分基础入门物理课程中所涵盖的基本电磁概念的理解。为了评估该评估工具的可靠性和区分能力，我们进行了统计测试，重点是项目分析（项目难度指数，项目区分指数和项目点双对数系数）和整个测试（测试可靠性和弗格森的三角洲）。结果表明，BEMA是一个可靠的评估工具。
The Brief Electricity and Magnetism Assessment (BEMA), developed by Chabay and Sherwood, was designed to assess student understanding of basic electricity and magnetism concepts covered in college-level calculus-based introductory physics courses. To evaluate the reliability and discriminatory power of this assessment tool, we performed statistical tests focusing both on item analyses (item difficulty index, item discrimination index, and item point biserial coefficient) and on the entire test (test reliability and Ferguson's delta). The results indicate that BEMA is a reliable assessment tool.