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Protopapas, Athanassios; Parrila, Rauno; Simos, Panagiotis G. – Journal of Learning Disabilities, 2016
The concept of Matthew effects in reading development refers to a longitudinally widening gap between high achievers and low achievers. Various statistical approaches have been proposed to examine this idea. However, little attention has been paid to psychometric issues of scaling. Specifically, interval-level data are required to compare…
Descriptors: Reading Instruction, Reading Achievement, Achievement Gap, Longitudinal Studies
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Gensemer, Ira B.; And Others – Journal of Learning Disabilities, 1976
Examined were differences between Wechsler Intelligence Scale for Children and Peabody Picture Vocabulary Test scores for 99 children with learning problems who were patients in a multispecialty group medical practice. (Author/DB)
Descriptors: Clinical Diagnosis, Exceptional Child Research, Intelligence Tests, Learning Disabilities