The goal of this study was to systematically examine group differences among adults with intellectual disabilities (ID), comorbid autism spectrum disorders (ASD), and epilepsy through a detailed exploration of the characteristics that these disorders present in the area of psychopathology. Previous studies indicating that individuals with ID have…

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)

This paper reviews the assessment and diagnosis of attention deficit/hyperactivity disorder (ADHD) in adults. To provide baseline information, consideration is given to outcome studies for adults who were first diagnosed with ADHD as children. Studies of clinical assessment methods are addressed, and previous diagnostic criteria are compared to…

This paper reviews literature on the adult outcomes for children diagnosed with attention deficit/hyperactivity disorder (AD/HD). It critiques methodological issues, including diagnostic definitions, research designs, sample characteristics, and assessment instruments. It examines the relationship of AD/HD to a variety of adult disorders and…