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arXiv 1407.6310physics.ed-ph
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耦合多反应与自由反应的概念评估:一个来自高年级物理的例子

Coupled Multiple-response vs. Free-response Conceptual assessment: An Example from upper-division Physics

Bethany R. Wilcox, Steven J. Pollock

摘要:

自由反应研究为基础的评估,如科罗拉多州上师静电诊断(CUE),提供丰富的,关于学生的推理细粒度的信息。然而,由于这些评估的评分固有的困难,大多数物理学的大规模概念评估是多项选择。为了提高CUE的可扩展性和可用性,我们着手创建一个新版本的评估,保留了自由回答格式提供的见解,同时利用多项选择评估的后勤优势。我们使用了我们广泛的数据库的响应自由反应CUE构建干扰的新版本,学生可以选择多个响应,并根据他们的选择的准确性和一致性获得部分学分。在这里,我们描述了这种修改后的CUE格式的发展,我们称之为耦合多响应(CMR),并提供了来自两个版本直接比较的数据。我们发现,这两种格式有相同的平均分数,并执行类似的多项措施的有效性和可靠性,这表明新版本是一个潜在的可行的替代原来的CUE的目的,大规模的研究为基础的评估。我们还比较了学生对两个版本的反应的细节。虽然CMR版本没有捕捉到潜在的学生反应的全部范围,近四分之三的学生对自由回答版本的反应包含一个或多个元素,匹配CMR版本上提供的选项。

英文摘要:

Free-response research-based assessments, like the Colorado Upper-division Electrostatics Diagnostic (CUE), provide rich, fine-grained information about students' reasoning. However, because of the difficulties inherent in scoring these assessments, the majority of the large-scale conceptual assessments in physics are multiple-choice. To increase the scalability and usability of the CUE, we set out to create a new version of the assessment that preserves the insights afforded by a free-response format while exploiting the logistical advantages of a multiple-choice assessment. We used our extensive database of responses to the free-response CUE to construct distractors for a new version where students can select multiple responses and receive partial credit based on the accuracy and consistency of their selections. Here, we describe the development of this modified CUE format, which we call coupled multiple-response (CMR), and present data from direct comparisons of both versions. We find that the two formats have the same average score and perform similarly on multiple measures of validity and reliability, suggesting that the new version is a potentially viable alternative to the original CUE for the purpose of large-scale research-based assessment. We also compare the details of student responses on each of the two versions. While the CMR version does not capture the full scope of potential student responses, nearly three-quarters of our students' responses to the free-response version contained one or more elements that matched options provided on the CMR version.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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