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Williamson, Gary L. – Cogent Education, 2018
Individual growth curves yield insights about growth that are not available from any other methodology; and developmental scales based on conjoint measurement models provide unique interpretive advantages for investigations of academic growth. The advantages are apparent when: (1) 15 consecutive statewide reading growth curves are annotated with…
Descriptors: Reading Achievement, Mathematics Achievement, Psychometrics, Educational Innovation
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Schulte, Ann C.; Stevens, Joseph J.; Elliott, Stephen N.; Tindal, Gerald; Nese, Joseph F. T. – Journal of Educational Psychology, 2016
Reading comprehension growth trajectories from 3rd to 7th grade were estimated for 99,919 students on a state reading comprehension assessment. We examined whether differences between students in general education (GE) and groups of students identified as exceptional learners were best characterized as stable, widening, or narrowing. The groups…
Descriptors: Reading Comprehension, Achievement Gap, Disabilities, Reading Tests
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Schulte, Ann C.; Stevens, Joseph J. – Exceptional Children, 2015
This study used a statewide longitudinal sample to examine mathematics achievement gaps and growth in students with and without disabilities and to examine the impact of different methods of determining disability group membership on achievement gaps and growth. When disability status was determined on the basis of special education placement each…
Descriptors: Longitudinal Studies, Mathematics Achievement, Achievement Gap, Disabilities