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Peer reviewedMarshall, Richard M.; Schafer, Vickie A.; O'Donnell, Louise; Elliott, Jennifer; Handwerk, Michael L. – Journal of Learning Disabilities, 1999
This study investigated whether specific academic deficits were associated with attention-deficit disorder subtypes (with or without hyperactivity) with 40 elementary students. Results support the hypothesis that inattention exerts a specific and deleterious effect on the acquisition of arithmetic-computation skills. Implications for ADHD…
Descriptors: Arithmetic, Attention Control, Attention Deficit Disorders, Clinical Diagnosis
Direct linkRousselle, Laurence; Noel, Marie-Pascale – Journal of Learning Disabilities, 2008
The adaptive use of approximate calculation was examined using a verification task with 18 third graders with mathematics learning disabilities, 22 typically achieving third graders, and 21 typically achieving second graders. Participants were asked to make true-false decisions on simple and complex addition problems while the distance between the…
Descriptors: Mathematics Education, Learning Disabilities, Mental Computation, Grade 3
