This information sheet briefly describes the history of the identification of Down Syndrome, its prenatal diagnosis, characteristics of individuals with Down Syndrome, its causes, its rate of occurrence and recurrence, its impact on child development, and recommended content of education programs for children with Down Syndrome. A list of seven…

This digest provides an overview of mental retardation in children and adults. It begins by discussing the definition of mental retardation and the three components that are required for an accurate diagnosis: an IQ score of approximately 70 or below, a determination of deficits in adaptive behavior, and origins of the disability prior to age 18.…