The Mathematical Knowledge for Teaching Measures: Refreshing the Item Pool

本项目提出了一项评估研究，重点是改进教师数学教学知识（MKT）的现有措施。研究小组将更新现有的测量方法，增加新的项目，并使仪器与学校数学的新标准保持一致。此外，该小组将把评估的交付系统更新为Qualtrics，这是一个更灵活的在线系统。研究小组将建立一个更新的教师数学教学知识测量（MKT）。项目研究人员将开展项目写作营，开发新项目，认知试点和修订项目，因素分析项目。研究人员还将通过项目反应理论（IRT）的创新应用（采用标准的2参数IRT模型的变体）来确定项目结构和校准项目（和结构）。最后，该小组将监督教师知识评估系统向质量数据收集环境的过渡，以允许更灵活的项目规范。探索研究PreK-12项目（DRK-12）旨在通过研究和开发创新资源、模型和工具（rmt），显著提高PreK-12学生和教师对科学、技术、工程和数学（STEM）的学习和教学。DRK-12计划中的项目建立在STEM教育的基础研究和先前的研究和开发工作的基础上，为拟议的项目提供了理论和实证依据。

This project proposes an assessment study that focuses on improving existing measures of teachers' Mathematical Knowledge for Teaching (MKT). The research team will update existing measures, adding new items and aligning the instrument to new standards in school mathematics. In addition, the team will update the delivery system for the assessment to Qualtrics, a more flexible online system.The research team will build an updated measure of teachers' Mathematical Knowledge for Teaching (MKT). Project researchers will conduct item writing camps, develop new items, cognitively pilot and revise items, and factor analyze items. The researchers will also determine item constructs and calibrate items (and constructs) through an innovative application of Item Response Theory (IRT) employing a variant of the standard 2-parameter IRT model. Finally, the team will oversee the transition of the Teacher Knowledge Assessment System to the Qualtrics data collection environment to allow for more flexible item specification.The Discovery Research PreK-12 program (DRK-12) seeks to significantly enhance the learning and teaching of science, technology, engineering and mathematics (STEM) by preK-12 students and teachers, through research and development of innovative resources, models and tools (RMTs). Projects in the DRK-12 program build on fundamental research in STEM education and prior research and development efforts that provide theoretical and empirical justification for proposed projects.