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Fox, Robert A.; Wade, Erin J. – Research in Developmental Disabilities, 1998
A study investigated the incidence of attention deficit hyperactivity disorder in 86 adults with severe mental retardation. Using the Diagnostic and Statistical Manual of Mental Disorders, 15% of the sample met the diagnostic criteria. This measure was not influenced by chronological age, adaptive age, IQ, or gender. (Author/CR)
Descriptors: Adults, Attention Deficit Disorders, Clinical Diagnosis, Disability Identification

Aman, Michael G.; Armstrong, Sharon; Buican, Brett; Sillick, Traci – Research in Developmental Disabilities, 2002
Twenty children with attention deficit hyperactivity disorder (ADHD) and low IQs were followed up 4.5 years later (ages 8-20). A majority continued to screen positive for ADHD, as well as display high rates of comorbid anxiety disorders, tics, and elimination disorders. Multiple medication trials resulted in significantly lower hyperactivity…
Descriptors: Adolescents, Age Differences, Anxiety, Attention Deficit Disorders