The Mathematical Knowledge for Teaching Measures: Refreshing the Item Pool

本项目提出了一项评估研究，重点是改善教师的数学知识教学（MKT）的现有措施。研究小组将更新现有的措施，增加新的项目，并调整工具，以新的标准，在学校数学。此外，该团队还将更新评估的交付系统，使其成为一个更灵活的在线系统Qualtrics。研究团队将建立一个更新的教师教学数学知识（MKT）衡量标准。 项目研究人员将进行项目写作营，开发新项目，认知试点和修订项目，并对项目进行因素分析。 研究人员还将通过创新应用项目反应理论（IRT），采用标准2参数IRT模型的变体，确定项目结构并校准项目（和结构）。 最后，该团队将监督教师知识评估系统向Qualtrics数据收集环境的过渡，以允许更灵活的项目规范。发现研究PreK-12计划（DRK-12）旨在通过研究和开发创新资源，模型和工具（RMT）。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，这些研究和开发工作为拟议项目提供了理论和经验依据。

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.