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Direct linkRichard E. Mattison; Adrienne D. Woods; Paul L. Morgan; George Farkas; Marianne M. Hillemeier – Journal of Learning Disabilities, 2023
We examined to what extent subgroups of students identified with learning disabilities (LDs; N = 630) in the Early Childhood Longitudinal Study, Kindergarten Class of 1998 to 1999 (ECLS-K): 1998 national longitudinal study displayed heterogeneity in longitudinal profiles of reading and mathematics achievement from first to eighth grades.…
Descriptors: Students with Disabilities, Learning Disabilities, Reading Achievement, Mathematics Achievement
Morgan, Paul L.; Farkas, George; Hillemeier, Marianne M.; Maczuga, Steve – Journal of Learning Disabilities, 2016
We analyzed two nationally representative, longitudinal data sets of U.S. children to identify risk factors for persistent mathematics difficulties (PMD). Results indicated that children from low socioeconomic households are at elevated risk of PMD at 48 and 60 months of age, as are children with cognitive delays, identified developmental delays…
Descriptors: Learning Problems, Learning Disabilities, At Risk Students, Mathematics Instruction
Morgan, Paul L.; Farkas, George; Wu, Qiong – Journal of Learning Disabilities, 2011
The authors used a large sample of children (N [is approximately equal to] 7,400) participating in the Early Childhood Longitudinal Study-Kindergarten Cohort (ECLS-K) to estimate kindergarten children's academic achievement growth trajectories in reading and mathematics. The authors were particularly interested in whether the growth trajectories…
Descriptors: Behavior Problems, Learning Disabilities, Language Impairments, Reading Achievement
