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De Clercq-Quaegebeur, Maryse; Casalis, Séverine; Vilette, Bruno; Lemaitre, Marie-Pierre; Vallée, Louis – Journal of Learning Disabilities, 2018
A high comorbidity between reading and arithmetic disabilities has already been reported. The present study aims at identifying more precisely patterns of arithmetic performance in children with developmental dyslexia, defined with severe and specific criteria. By means of a standardized test of achievement in mathematics ("Calculation and…
Descriptors: Arithmetic, Mathematics Skills, Elementary School Students, Dyslexia
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Pelegrina, Santiago; Capodieci, Agnese; Carretti, Barbara; Cornoldi, Cesare – Journal of Learning Disabilities, 2015
It has been argued that children with learning disabilities (LD) encounter severe problems in working memory (WM) tasks, especially when they need to update information stored in their WM. It is not clear, however, to what extent this is due to a generally poor updating ability or to a difficulty specific to the domain to be processed. To examine…
Descriptors: Learning Disabilities, Short Term Memory, Children, Arithmetic
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Hurks, Petra P. M.; van Loosbroek, Erik – Journal of Learning Disabilities, 2014
Time perception has not been comprehensively examined in mathematics difficulties (MD). Therefore, verbal time estimation, production, and reproduction were tested in 13 individuals with MD and 16 healthy controls, matched for age, sex, and intellectual skills. Individuals with MD performed comparably to controls in time reproduction, but showed a…
Descriptors: Time Management, Mathematics, Short Term Memory, Intervals
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van Bergen, Elsje; de Jong, Peter F.; Maassen, Ben; Krikhaar, Evelien; Plakas, Anna; van der Leij, Aryan – Journal of Learning Disabilities, 2014
Do children who go on to develop dyslexia show normal verbal and nonverbal development before reading onset? According to the aptitude-achievement discrepancy model, dyslexia is defined as a discrepancy between intelligence and reading achievement. One of the underlying assumptions is that the general cognitive development of children who fail to…
Descriptors: Children, Intelligence Quotient, Dyslexia, Young Children
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Swanson, H. Lee – Journal of Learning Disabilities, 2011
This longitudinal study assessed (a) whether performance changes in working memory (WM) as a function of dynamic testing were related to growth in reading comprehension and (b) whether WM performance among subgroups of children with reading disabilities (RD; children with RD only, children with both reading and arithmetic deficits, and low verbal…
Descriptors: Reading Comprehension, Reading Difficulties, Maintenance, Testing
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Shalev, Ruth S.; Manor, Orly; Kerem, Batsheva; Ayali, Mady; Badichi, Navah; Friedlander, Yechiel; Gross-Tsur, Varda – Journal of Learning Disabilities, 2001
Siblings and parents of 39 children with dyscalculia were assessed for arithmetic, reading, and attention disorders. Findings indicated a familial prevalence of dyscalculia almost tenfold higher than expected for the general population and suggest that dyscalculia, like other learning disabilities, has a significant familial aggregation,…
Descriptors: Arithmetic, Attention Deficit Disorders, Children, Dyscalculia