BACKGROUND Previous analyses have found variable results when evaluating the size of the association between intellectual ability and adaptive functioning in individuals with impaired function. METHODS We assessed the association between intellectual ability measured as a latent higher-order g and three different areas of adaptive functioning in a sample of clinically referred individuals wit...

Intellectual disability (ID) is defined by significant limitations in intellectual functioning and adaptive behavior with an age of onset being less than 18 years. The prevalence of intellectual disability/developmental delay is 1 – 3 % in the general population. The definition of mental retardation/intellectual disability Shift from ‘Mental retardation’ to ‘Intellectual disability’ in the 2002...

Six hundred eighty seven individuals ages 25-103 years were studied cross-sectionally to examine the relationship between measures of sensory functioning (visual and auditory acuity) and intelligence (14 cognitive tasks representing a 5-factor space of psychometric intelligence). As predicted, the average proportion of individual differences in intellectual functioning connected to sensory func...

Williams syndrome (WS) is a developmental disorder of genetic origin, with characteristic cognitive and personality profiles. Studies of WS point to an outgoing and gregarious personality style, often contrasted with autism spectrum disorders; however, recent research has uncovered underlying social reciprocity difficulties in people with WS. Social information processing difficulties that unde...