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Mattison, Richard E.; Woods, Adrienne D.; Morgan, Paul L.; Farkas, George; Hillemeier, Marianne M. – 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
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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