The development of proficiency in the practices used by scientists and engineers is considered an important student outcome of laboratory instruction. We developed tasks to assess students’ use and development of selected scientific and engineering practices in the general chemistry laboratory using an adapted evidence-centered design approach. In this paper, we provide a detailed description of the process of development and validation of these assessment tasks, using one of our tasks to illustrate the process. The tasks show strong evidence of validity and reliability for revealing students’ understanding of scientific and engineering practices within the research context.

中文翻译：

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通用化学实验室的科学实践评估任务的开发和验证

科学家和工程师使用的实践能力的提高被认为是学生对实验室教学的重要成果。我们制定了任务，以采用适应性为中心的设计方法来评估学生在普通化学实验室中对所选科学和工程实践的使用和发展。在本文中，我们将使用我们的一项任务来说明该过程，从而详细说明这些评估任务的开发和验证过程。任务显示出有效和可靠的有力证据，可以揭示学生在研究背景下对科学和工程实践的理解。