Raven’s Coloured Progressive Matrices performance as a valid predictor of cognitive and motor delay in Intellectual Disability regardless of etiology
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1
La Trobe University, Australia
The question of whether children with Intellectual disability (ID) of different etiologies are just developmentally delayed or also deviant in their problem solving has long been debated in the research literature, as this underlies how best to match ID children to typically developing (TD) children. This study investigated the adequacy of the Raven’s Coloured Progressive Matrices (RCPM) as a tool for mental age matching in ID and TD children. The RCPM is a non-verbal and untimed measure of reasoning, making it suitable for children with ID rather the more commonly used verbally based Wechsler Intelligence Scale for Children. Performance of verbal children with ID including 24 children with Down Syndrome, 45 children with Idiopathic ID, 51 children with Autism and 54 TD children of similar non-verbal mental age (measured by the RCPM) were compared on measures of cognitive ability. As predicted, correct and error performance on the RCPM closely correlated with receptive language ability (measured by the Peabody Picture Vocabulary Test), short term and working memory capacity (measured by visual and auditory digit span) and motor ability (measured by the Pegboard) for TD children and children with ID (regardless of etiology). These findings suggest that ID is largely characterized by developmental delay and it is the degree of ID that poses the greatest limitation on cognitive potential, thus supporting the RCPM as a valid means of matching ID and TD children on mental age in experimental studies. Implications of the findings for the conceptualization and the education of children with ID are discussed.
Keywords:
Raven’s Coloured Progressive Matrices,
non-verbal mental age,
Intellectual Disability,
receptive language,
memory.
Conference:
ACNS-2012 Australasian Cognitive Neuroscience Conference, Brisbane, Australia, 29 Nov - 2 Dec, 2012.
Presentation Type:
Poster Presentation
Topic:
Other
Citation:
Goharpey
N,
Tsoutsoulis
K and
Crewther
SG
(2012). Raven’s Coloured Progressive Matrices performance as a valid predictor of cognitive and motor delay in Intellectual Disability regardless of etiology.
Conference Abstract:
ACNS-2012 Australasian Cognitive Neuroscience Conference.
doi: 10.3389/conf.fnhum.2012.208.00196
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Received:
25 Oct 2012;
Published Online:
23 Nov 2012.
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Correspondence:
Dr. Nahal Goharpey, La Trobe University, Melbourne, Australia, n.goharpey@latrobe.edu.au