Background: Intellectual disability research has concentrated on self-reported explicit attitudes with little focus on implicit attitudes. Such attitudes are evaluations which occur with or without conscious awareness, respectively. This investigation examined participants' (N = 234) attitudes towards individuals with intellectual disabilities…

Background: Little is known about trajectories of cognitive functioning as individuals with Williams syndrome (WS) move though adulthood. Method: The present study investigated cognitive, linguistic and adaptive functioning in adults with WS aged 19-55 years, using both cross-sectional and longitudinal approaches. Results: Data from the…

Background: Associations among cognitive development and intrapersonal and environmental characteristics were investigated for 89 longitudinal study participants with Down syndrome to understand developmental patterns associated with cognitive strengths and weaknesses. Materials and Methods: Subtest scores of the Stanford-Binet IV collected…

Background: Studies with children suggest that reactive attachment disorder (RAD) is associated with pathogenic early care. Little is known about RAD in adults with intellectual disabilities, many of whom experience adversity and abuse in early life. We investigated whether RAD symptoms occur in this population, and explored whether hypothesized…

Background: This study explores everyday social competence in the lives of persons with three genetic intellectual disability syndromes. Methods: Using parent reports on the Social and Activity Competence domains of Achenbach's Child Behavior Checklist (CBCL), socially competent behaviours were examined in 58 persons with Williams syndrome, 54…