What are intellectual and developmental disabilities? Intellectual disability is a disability characterized by significant limitations in both intellectual functioning and in adaptive behavior, which ...

The US Supreme Court on Tuesday, December 10, heard oral argument in Hamm vs. Smith, a capital case that could reshape how ...

Adults who had improved nutrition in early childhood may score better on intellectual tests, regardless of the number of years they attended school, according to a new article. Adults who had improved ...

Disability advocates are speaking out as the U.S. Supreme Court prepares to take on a case that hinges on whether a diagnosis of intellectual disability should be based on more than an IQ score. The ...

Urea cycle disorders (UCDs) comprise deficiencies in any of the six enzymes and two transport proteins involved in urea biosynthesis. The specific disorders are: n-acetylglutamate synthase deficiency, ...

Intellectual disability is a developmental delay that is significantly below average compared to peers, in terms of intelligence and adaptive skills. The American Association on Intellectual and ...

Seth P. Waxman, Smith’s lawyer, told the justices that the lower federal courts in his client’s case correctly applied ...

The US Supreme Court will hear Hamm v. Smith on Wednesday, December 10, a death penalty case testing how courts should treat multiple IQ scores when deciding whether a death-row prisoner is ...

Death row inmate Joseph Clifton Smith scored high enough on IQ tests to be executed, but his defense contends he is mentally ...

The Supreme Court on Wednesday grappled with where the line should be drawn on intellectual disability when the death penalty ...