Introductory physics lab courses serve as the starting point for students to learn and experience experimental physics at the undergraduate level. They often focus on measurement uncertainty, an essential topic for practicing physicists and a foundation for more advanced lab learning. As such, measurement uncertainty has been a focus when studying and improving introductory physics lab courses. There is a need for a research-based assessment explicitly focused on measurement uncertainty that captures the breadth of learning related to the topic, and that has been developed and documented in an evidence-centered way. In this work, we present the first step in the development of such an assessment, with the goal of establishing the breadth and depth of the domain of measurement uncertainty in introductory physics labs. We conducted and analyzed interviews with introductory physics lab instructors across the US, identifying prevalent concepts and practices related to measurement uncertainty, and their level of emphasis in introductory physics labs. We find that instructors discuss a range of measurement uncertainty topics beyond basic statistical ideas like mean and standard deviation, including those connected to modeling, another lab learning goal. We describe how these findings will be used in the subsequent development of the assessment, called the Survey Of Physics Reasoning On Uncertainty Concepts In Experiments (SPRUCE).

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入门物理实验室讲师对测量不确定度的看法

入门物理实验室课程是学生学习和体验本科阶段实验物理学的起点。他们通常将重点放在测量不确定性上，这是执业物理学家必不可少的主题，也是更高级的实验室学习的基础。因此，测量不确定性一直是研究和改进物理入门实验课程的重点。需要一种基于研究的评估，该评估应明确关注测量不确定性，以捕获与该主题相关的学习广度，并以证据为中心进行开发和记录。在这项工作中，我们提出了这种评估的第一步，目的是在入门物理实验室中确定测量不确定度范围的广度和深度。我们对全美的入门物理实验室讲师进行了访谈并进行了分析，确定了与测量不确定性相关的普遍概念和实践，以及他们在入门物理实验室中的重视程度。我们发现，除了基本统计概念（例如均值和标准差）（包括与建模相关的实验目的）以外，讲师还讨论了一系列测量不确定性主题。我们描述了这些发现将如何用于随后的评估开发中，该评估称为“实验不确定性概念的物理推理调查”（SPRUCE）。我们发现，除了基本统计概念（例如均值和标准差）（包括与建模相关的实验目的）以外，讲师还会讨论一系列测量不确定性主题。我们描述了这些发现将如何用于随后的评估开发中，该评估称为“实验不确定性概念的物理推理调查”（SPRUCE）。我们发现，除了基本统计概念（例如均值和标准差）（包括与建模相关的实验目的）以外，讲师还讨论了一系列测量不确定性主题。我们描述了这些发现将如何用于随后的评估开发中，该评估称为“实验不确定性概念的物理推理调查”（SPRUCE）。