MOSART-LS: Misconceptions Oriented, Standards-based Assessment Resource for Teachers in the Life Sciences

以误解为导向的基于标准的生命科学教师评估资源（MOSART-LS）项目开发了严格的分心因素驱动的多项选择评估工具，有助于生成基于证据的MSP项目对K-8教师生命科学主题知识和相关教学内容知识的影响的衡量标准。美国国家研究委员会（NRC）的《科学标准》和美国科学促进会（AAAS）的《科学基准》是教师应该掌握的与年级相适应的内容的框架。这项工作利用学生概念的同行评议研究，以产生专门的评估。这些评估衡量的是教师持有生命科学中31个K-8内容标准所代表的公认科学观点的程度。该项目正在开发250个有效的新项目，并从具有全国代表性的8000名学生及其教师样本中收集数据，以描述两者的内容知识特征。测试项目的子集被组织到仪器中，并由内容专家进行验证。当添加到现有的测试题库时，这些新的生命科学项目也允许构建“一般科学”工具，以测量所有NRC在K-4和5-8年级的内容标准中教授的概念。将这些测试纳入MOSART在线评估系统将使管理更容易，并允许汇总参与的msp的数据。运用心理测量模型与认知研究成果相结合，建立了准确衡量中小学生命科学教学所需的科学理解的量表和子测试。这些工具对于诊断目的是有用的，在专业发展之前确定参与者的优势和劣势。通过增加考试后管理，教师知识的变化可以被测量和表征。该项目是提案人早期工作的直接产物，包括视频“私人宇宙”和MOSART。

The Misconception Oriented Standards-based Assessment Resource for Teachers in Life Science (MOSART-LS) project develops rigorous Distractor Driven Multiple Choice assessment tools that aid in generating evidence-based measures of MSP projects' impact on K-8 teachers' life science subject-matter knowledge and relevant pedagogical content knowledge. The National Research Council's (NRC's) Science Standards and AAAS Science Benchmarks serve as a framework for the grade-appropriate content that teachers are expected to master. This work utilizes peer-reviewed research studies of student conceptions in order to generate specialized assessments. These assessments measure the degree to which teachers hold the accepted scientific view represented by each of the 31 K-8 Content Standards in life science. The project is developing 250 valid new items and gathering data from a nationally representative sample of 8000 students and their teachers, characterizing the content knowledge of both. Subsets of test items are organized into instruments and validated by content experts. When added to the existing test item bank developed as part of earlier efforts that focused on physical science and earth/space science, these new life science items also allow for the construction of "general science" instruments to measure the concepts taught across all NRC content standards at the K-4 and 5-8 grade bands. Incorporation of these tests into the MOSART online assessment system will make administration easier and allow for the aggregation of data from participating MSPs.The application of psychometric models aligned with cognitive research findings are used to establish scales and subtests that accurately gauge the scientific understanding needed for teaching elementary school and middle school life science. These instruments are useful for diagnostic purposes, ascertaining the strengths and weaknesses of participants prior to professional development. By adding a post-test administration, changes in teacher knowledge can be measured and characterized. The project is a direct outgrowth of the proposer's earlier efforts including the video "A Private Universe" and MOSART.