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Download full textSaez, Leilani; Park, Bitnara; Nese, Joseph F. T.; Jamgochian, Elisa; Lai, Cheng-Fei; Anderson, Daniel; Kamata, Akihito; Alonzo, Julie; Tindal, Gerald – Behavioral Research and Teaching, 2010
In this series of studies, we investigated the technical adequacy of three curriculum-based measures used as benchmarks and for monitoring progress in three critical reading- related skills: fluency, reading comprehension, and vocabulary. In particular, we examined the following easyCBM measurement across grades 3-7 at fall, winter, and spring…
Descriptors: Elementary School Students, Middle School Students, Vocabulary, Reading Comprehension
Peer reviewed
Direct linkHayashi, Kentaro; Kamata, Akihito – Psychometrika, 2005
The asymptotic standard deviation (SD) of the alpha coefficient with standardized variables is derived under normality. The research shows that the SD of the standardized alpha coefficient becomes smaller as the number of examinees and/or items increase. Furthermore, this research shows that the degree of the dependence of the SD on the number of…
Descriptors: Correlation, Statistical Analysis, Measurement Techniques, Simulation
