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Direct linkSkagerlund, Kenny; Träff, Ulf – Journal of Learning Disabilities, 2016
This study investigated if developmental dyscalculia (DD) in children with different profiles of mathematical deficits has the same or different cognitive origins. The defective approximate number system hypothesis and the access deficit hypothesis were tested using two different groups of children with DD (11-13 years old): a group with…
Descriptors: Learning Disabilities, Cognitive Ability, Number Concepts, Mathematics Skills
Tolar, Tammy D.; Fuchs, Lynn; Fletcher, Jack M.; Fuchs, Douglas; Hamlett, Carol L. – Journal of Learning Disabilities, 2016
Three cohorts of third-grade students (N = 813) were evaluated on achievement, cognitive abilities, and behavioral attention according to contrasting research traditions in defining math learning disability (LD) status: low achievement versus extremely low achievement and IQ-achievement discrepant versus strictly low-achieving LD. We use methods…
Descriptors: Grade 3, Elementary School Students, Mathematics Instruction, Learning Disabilities
Gustafson, Stefan; Falth, Linda; Svensson, Idor; Tjus, Tomas; Heimann, Mikael – Journal of Learning Disabilities, 2011
In a longitudinal intervention study, the effects of three intervention strategies on the reading skills of children with reading disabilities in Grade 2 were analyzed. The interventions consisted of computerized training programs: One bottom-up intervention aimed at improving word decoding skills and phonological abilities, the second…
Descriptors: Reading Difficulties, Intervention, Disabilities, Decoding (Reading)
Adult Dyslexia and Attention Deficit Disorder in Finland--Project DyAdd: WAIS-III Cognitive Profiles
Laasonen, Marja; Leppamaki, Sami; Tani, Pekka; Hokkanen, Laura – Journal of Learning Disabilities, 2009
The project Adult Dyslexia and Attention Deficit Disorder in Finland (Project DyAdd) compares adults (n = 119, 18-55 years) with dyslexia, attention-deficit/hyperactivity disorder (ADHD), dyslexia together with ADHD (comorbid), and healthy controls with neuropsychological, psychophysical, and biological methods. The focus of this article is on the…
Descriptors: Dyslexia, Attention Deficit Hyperactivity Disorder, Short Term Memory, Multivariate Analysis
Geary, D. C. – Journal of Learning Disabilities, 2004
Between 5% and 8% of school-age children have some form of memory or cognitive deficit that interferes with their ability to learn concepts or procedures in one or more mathematical domains. A review of the arithmetical competencies of these children is provided, along with discussion of underlying memory and cognitive deficits and potential…
Descriptors: Memory, Mathematics Education, Learning Disabilities, Cognitive Processes
Peer reviewedRovet, Joanne; And Others – Journal of Learning Disabilities, 1996
This article integrates the literature on intelligence and achievement outcomes in boys with Klinefelter syndrome (KS). It reports results of a study following 36 boys with KS and 33 sibling controls. Boys with KS demonstrated verbal cognitive deficits and significant underachievement in reading, spelling, and arithmetic, which increased with age.…
Descriptors: Academic Achievement, Age, Arithmetic, Cognitive Ability
