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Guangming Li; Zhengyan Liang – SAGE Open, 2024
In order to investigate the influence of separation of grade distributions and ratio of common items on the precision of vertical scaling, this simulation study chooses common item design and first grade as base grade. There are four grades with 1,000 students each to take part in a test which has 100 items. Monte Carlo simulation method is used…
Descriptors: Elementary School Students, Grade 1, Grade 2, Grade 3
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Albano, Anthony D.; Christ, Theodore J.; Cai, Liuhan – Measurement: Interdisciplinary Research and Perspectives, 2018
Traditional psychometric methods have primarily been developed and applied in the context of high-stakes, large-scale testing. However, these methods are increasingly being used with classroom assessments, including progress monitoring measures where numerous test forms are administered over the course of an academic year. This article provides an…
Descriptors: Progress Monitoring, Hierarchical Linear Modeling, Equated Scores, Raw Scores
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Barr, Christopher D.; Reutebuch, Colleen K.; Carlson, Coleen D.; Vaughn, Sharon; Francis, David J. – Journal of Research on Educational Effectiveness, 2019
Beginning in 2002, researchers developed, implemented, and evaluated the efficacy of an English reading intervention for first-grade English learners using multiple randomized control trials (RCTs). As a result of this efficacy work, researchers successfully competed for an IES Goal 4 effectiveness study using the same intervention. Unlike the…
Descriptors: Intervention, English Language Learners, Grade 1, Elementary School Students