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A Rasch analysis of three measures of teacher perception generated from the school and staffing survey

机译：通过学校和人员调查对教师感知的三种度量进行拉希分析

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摘要

The National Center for Educational Statistics' 1999-2000 Schools and Staffing Survey data are used extensively by researchers conducting secondary analysis on a variety of issues including teacher quality, teacher preparation, and the use of technology in the classroom. Researchers frequently combine the data from several related survey questions to create scaled variables, but little is known about the psychometric quality of these created variables. In this article, a Rasch analysis is conducted on three types of teacher perception: perception of influence, perception of students, and school climate. Measures for each type of teacher perception are scaled using a Rasch Rating Scale Model. The quality of these measures for the three scales is then examined. Evaluations focus on six characteristics of each instrument: dimensionality, internal consistency, rating category effectiveness, item quality, item hierarchy, and measure quality. Overall, the three scaled variables exhibit acceptable quality and are appropriate for use in secondary data analysis.
机译：美国国家教育统计中心的1999-2000年学校和人员调查数据被研究人员广泛使用，他们对包括教师素质，教师准备和课堂使用技术在内的各种问题进行了二级分析。研究人员经常结合来自几个相关调查问题的数据来创建比例变量，但对这些变量的心理质量了解甚少。在本文中，对教师的三种类型的感知进行了Rasch分析：影响力感知，学生感知和学校氛围。使用Rasch评分量表模型对每种类型的教师知觉的量度进行缩放。然后检查这三个量表的这些措施的质量。评估集中在每种工具的六个特征上：维度，内部一致性，评级类别有效性，项目质量，项目层次和度量质量。总体而言，这三个比例变量显示出可接受的质量，适合用于辅助数据分析。

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