Chapter 15 Slides

Chapter 15 Slides - Chapter 15 Mental Retardation and...

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Chapter 15 Mental Retardation and Autism
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What is Mental Retardation? Deficits in cognitive abilities Deficits in adaptive behavioral functioning Onset before 18
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How much deficit? Early cognitive tests compared mental and chronological ages IQ = MA/CA Current cognitive tests use Deviation IQ : comparison of the child to the distribution of all children of the same age
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Characteristics of IQ Cognitive abilities (IQ scores) are normally distributed Average IQ Score = 100 Standard Deviation = 15
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DSM-IV uses about 70 as the cut-off for possible MR; AAMR uses 70-75 Adaptive functioning: similar distribution assumed, but assessment less psychometrically rigorous
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Deficits in adaptive functioning include problems in important areas of living: social, self-care, communication, academic/occupational, health-safety, use of resources Both cognitive and adaptive functioning deficits must be substantial
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Subtypes of Mental Retardation Based on severity Include Mild Moderate Severe Profound
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Mild Mental Retardation IQ range about 55-70 85% of people with MR fall in this subtype Associated with few physical impairments, educational attainment at about 6 th grade level, community living likely May be associated with environmental factors
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Moderate Mental Retardation IQ range about 40-55 10% of people with MR fall in this subtype Often associated with physical abnormalities Educational attainment at about 2 nd grade level, community living unlikely; require close supervision
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Severe Mental Retardation IQ range about 25-40 3-4% of people with MR fall in this subtype Limited speech/communication Motor problems often seen Very close supervision needed
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This note was uploaded on 09/25/2008 for the course PSYCH 341 taught by Professor Aaron during the Fall '08 term at UVA.

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Chapter 15 Slides - Chapter 15 Mental Retardation and...

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