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Comorbidity between Reading Disability and Math Disability: Concurrent Psychopathology, Functional Impairment, and Neuropsychological Functioning
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Willcutt, Erik G.; Petrill, Stephen A.; Wu, Sarah; Boada, Richard; DeFries, John C.; Olson, Richard K.; Pennington, Bruce F. – Journal of Learning Disabilities, 2013
Reading disability (RD) and math disability (MD) frequently co-occur, but the etiology of this comorbidity is not well understood. Groups with RD only (N = 241), MD only (N = 183), and RD + MD (N = 188) and a control group with neither disorder (N = 411) completed a battery of measures of internalizing and externalizing psychopathology, social and…
Descriptors: Comorbidity, Reading Difficulties, Behavior Disorders, Psychopathology
Comorbidity of Reading Disability and Attention-Deficit/Hyperactivity Disorder: Differences by Gender and Subtype.
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Willcutt, Erik G.; Pennington, Bruce F. – Journal of Learning Disabilities, 2000
A study involving 494 twins with a reading disability (RD) and 373 typical twins found that individuals with RD were more likely to meet criteria for attention-deficit/hyperactivity disorder (ADHD) and that the association between RD and ADHD was stronger for symptoms of inattention than for hyperactivity symptoms. (Contains extensive references.)…
Descriptors: Attention Deficit Disorders, Children, Hyperactivity, Multiple Disabilities
EEG Analysis of Children with Attention-Deficit/Hyperactivity Disorder and Comorbid Reading Disabilities.
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Clarke, Adam R.; Barry, Robert J.; McCarthy, Rory; Selikowitz, Mark – Journal of Learning Disabilities, 2002
A study investigated electroencephalographic (EEG) differences between children with attention-deficit/hyperactivity disorder with reading disabilities (ADHD + RD) (n=20) or without (n=20), and 20 controls. Results indicate differences found in the ADHD + RD group represent an electrophysiological component associated with the reading disability…
Descriptors: Attention Deficit Disorders, Children, Electroencephalography, Hyperactivity
Mathematical Problem-Solving Profiles of Students with Mathematics Disabilities with and without Comorbid Reading Disabilities.
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Fuchs, Lynn S.; Fuchs, Douglas – Journal of Learning Disabilities, 2002
A study investigated the mathematical problem-solving abilities of 18 fourth-graders with mathematics disabilities (MD) with and without comorbid reading disabilities (RD). Results demonstrated large deficits for both groups. However, the differences between students with and without RD were mediated by the level of problem solving and by…
Descriptors: Elementary Education, Elementary School Mathematics, Grade 4, Learning Disabilities