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Vaughn, Brandon K. – Journal on School Educational Technology, 2008
This study considers the importance of contextual effects on the quality of assessments on item bias and differential item functioning (DIF) in measurement. Often, in educational studies, students are clustered in teachers or schools, and the clusters could impact psychometric issues yet are largely ignored by traditional item analyses. A…
Descriptors: Test Bias, Educational Assessment, Educational Quality, Context Effect
Rock, Donald A.; And Others – 1995
This report documents the development and validation of the National Education Longitudinal Study of 1988 (NELS:88) cognitive test battery. The cognitive test battery assesses growth between grades 8 and 12 in the content areas of reading comprehension, mathematics, science, and history/citizenship/geography. The battery was part of the NELS:88…
Descriptors: Academic Achievement, Achievement Gains, Bayesian Statistics, Citizenship Education