title: A longitudinal study of cognitive abilities in Williams syndrome.
abstract: This longitudinal study assessed cognition in Williams syndrome (WS) over a 5 year period using the same test battery over the two occasions of testing. The aim was to explore whether absolute levels of ability and relative cognitive strengths and weaknesses remain consistent over time. 27 participants with WS were assessed using the Woodcock Johnson Test of Cognitive Ability--Revised (WJ-R COG, Woodcock & Johnson, 1989, 1990). Results suggested some developmental progress over time, but at a slower rate than typically developing peers. Cognitive strengths and weaknesses were consistent, at least on those abilities assessed using the WJ-R COG.
authors.affiliation: Department of Psychology, Macquarie University, Sydney, Australia. melanie.porter@psy.mq.edu.au
authors.forename: Melanie
authors.initials: M
authors.lastname: Porter
authors.forename: Helen
authors.initials: H
authors.lastname: Dodd
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D003072:Cognition Disorders / Q000209:etiology*; D005260:Female; D006801:Humans; D007806:Language Disorders / Q000175:diagnosis / Q000209:etiology; D016014:Linear Models; D008137:Longitudinal Studies; D008297:Male; D008875:Middle Aged; D009483:Neuropsychological Tests; D012016:Reference Values; D013997:Time Factors; D018980:Williams Syndrome / Q000150:complications*; D055815:Young Adult