Article: Learning Disabilities and ADHD: Overlapping Spectrum Disorders.(attention-deficit/hyperactivity disorder)(Statistical Data Included)

Previous research has indicated high comorbidity for learning disabilities (LD) and attention-deficit/hyperactivity disorder (ADHD) in children. In referred samples of children with ADHD, estimates of the prevalence of LD ranged from 15% to 50% for reading (August & Garfinkel, 1990; Barkley, 1990; Lambert & Sandoval, 1980; Livingston, Dykman, & Ackerman, 1990; Semrud-Clikeman et al., 1992), to 24% to 60% for math (Barkley, 1990; Lambert & Sandoval, 1980; Semrud-Clikeman et al., 1992), to 24% to 60% for spelling (Barkley, 1990). Overall, according to Barkley (1994), 25% to 50% of children with ADHD have LD.

A review of studies citing prevalence rates for LD in ...

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