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arXiv 2302.07336physics.ed-ph
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实验中不确定性概念的物理推理调查:面向入门物理实验课的测量不确定性评估

Survey of physics reasoning on uncertainty concepts in experiments: an assessment of measurement uncertainty for introductory physics labs

Michael Vignal, Gayle Geschwind, Benjamin Pollard, Rachel Henderson, Marcos D. Caballero, H. J. Lewandowski

AI总结:

本文基于证据中心设计开发了面向入门物理实验课的测量不确定性评估工具SPRUCE,用于前测-后测识别学生优势与困难,并展示了教师反馈示例及其解释方式。

摘要:

测量不确定性是物理科学实验研究的一个关键特征,围绕测量不确定性的概念与实践是物理实验课程的重要组成部分。然而,目前尚缺乏一种广泛适用、基于研究的评估工具,使物理教师能够便捷地测量学生对测量不确定性概念与实践的掌握情况。为满足这一需求,我们采用证据中心设计(Evidence-Centered Design)创建了“实验中不确定性概念的物理推理调查”(SPRUCE)。SPRUCE 是一种前测-后测评估工具,旨在用于入门(一、二年级)物理实验课程,帮助教师和研究人员识别学生在测量不确定性方面的优势与困难。在本文中,我们讨论了在证据中心设计指导下 SPRUCE 评估项目的开发过程,重点关注教师和研究人员的评估优先级如何被纳入评估项目,以及来自试点测试的学生推理如何为项目答案选项的决策提供依据。我们还展示了一个示例,说明教师在以“前测-后测”方式实施 SPRUCE 后会收到的一些反馈,并简要讨论了如何解释这些反馈并据此采取行动。

英文摘要:

Measurement uncertainty is a critical feature of experimental research in the physical sciences, and the concepts and practices surrounding measurement uncertainty are important components of physics lab courses. However, there has not been a broadly applicable, research-based assessment tool that allows physics instructors to easily measure students' knowledge of measurement uncertainty concepts and practices. To address this need, we employed Evidence-Centered Design to create the Survey of Physics Reasoning on Uncertainty Concepts in Experiments (SPRUCE). SPRUCE is a pre-post assessment instrument intended for use in introductory (first- and second-year) physics lab courses to help instructors and researchers identify student strengths and challenges with measurement uncertainty. In this paper, we discuss the development of SPRUCE's assessment items guided by Evidence-Centered Design, focusing on how instructors' and researchers' assessment priorities were incorporated into the assessment items and how students' reasoning from pilot testing informed decisions around item answer options. We also present an example of some of the feedback an instructor would receive after implementing SPRUCE in a pre-post fashion, along with a brief discussion of how that feedback could be interpreted and acted upon.

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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