CE21 Special Project: Principled Assessment of Computational Thinking

SRI国际（SRI）将为高中探索计算机科学（ECS）课程设计、开发和验证计算思维（CT）的评估。这项工作的合作伙伴是ECS开发人员和教师，以及计算机科学（CS）、计算机科学教育和评估方面的其他专家和利益相关者。在第一年，SRI将应用以证据为中心的设计来完善现有的ct实践评估框架和设计模式；开始设计和制定ECS评估任务和评分标准；召集专家小组审查评估任务与设计文件之间的对应关系；在少数教师中试行任务和评分标准。在第二年，SRI将使用试点结果来设计和开发最终任务集，并建立单元和总结性评估的形式；召集第二次专家组对单位和总结性评估表进行评审；并对大量教师进行了单元和总结性评价表及评分标准的实地测试。试点测试和实地测试都将包括与学生的认知访谈，以告知和评估设计中使用的定义。SRI将使用评估分数、反应过程和其他来自实地测试的有效性证据，对单元进行心理测量评估和总结性评估。全国各地的高中生都在使用ECS课程来学习计算机科学。随着ECS扩展到更多的地点和学生，ECS教师将需要高质量的评估来对学生进行有效的推断。计算思维练习。通过与ECS教师共同设计形成性和总结性评估资源，SRI将确保这些资源对教师有用。高质量的CT评估工具和资源将降低采用和使用ECS课程以及其他CS课程的障碍，并将为报告学生进步和准备在CT实践领域进一步学习的可操作证据铺平道路。SRI还期望PACT项目为计算机科学10K项目做出更广泛的贡献，为新的计算机科学教师提供方便和适应性强的资源来评估他们的学生。CT知识和技能。

SRI International (SRI) will design, develop, and validate assessments of computational thinking (CT) for the high school Exploring Computer Science (ECS) curriculum. Partners in this work are ECS developers and teachers, and other experts and stakeholders in computer science (CS), computer science education and assessment. In Year 1, SRI will apply evidence-centered design to refine an existing CT-practices assessment framework and design patterns; begin to design and develop ECS assessment tasks and scoring rubrics; convene an expert panel to review the correspondence between the assessment tasks and design documents; and pilot the tasks and scoring rubrics with a small number of teachers. In Year 2, SRI will use pilot results to design and develop a final set of tasks and to build forms of the unit and summative assessments; convene a second expert panel to review the unit and summative assessment forms; and field test the unit and summative assessment forms and scoring rubrics with a larger number of teachers. Both the pilot test and field test will include cognitive interviews with students to inform and evaluate definitions used in the design. SRI will use assessment scores, response processes, and other validity evidence from the field tests to conduct psychometric evaluation of the unit and summative assessments. The ECS curriculum is being used to engage high school students in computer science across the country. As ECS expands to more locations and students, ECS teachers will need high-quality assessments to make valid inferences about students? computational thinking practices. By co-designing formative and summative assessment resources with ECS teachers, SRI will ensure that the resources are useful to teachers. High-quality CT assessment tools and resources will lower barriers for adopting and using the ECS curriculum, as well as other CS curricula, and will pave the way to reporting actionable evidence of student progress and readiness to engage in further learning in the CT practices domain. SRI also expects the PACT project to contribute more broadly to the CS 10K project by providing new CS teachers with accessible and adaptable resources for assessing their students? CT knowledge and skills.