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ERIC Number: EJ874847
Record Type: Journal
Publication Date: 2010
Pages: 7
Abstractor: As Provided
Reference Count: N/A
ISBN: N/A
ISSN: ISSN-0160-2896
Stanford-Binet and WAIS IQ Differences and Their Implications for Adults with Intellectual Disability (aka Mental Retardation)
Silverman, Wayne; Miezejeski, Charles; Ryan, Robert; Zigman, Warren; Krinsky-McHale, Sharon; Urv, Tiina
Intelligence, v38 n2 p242-248 Mar-Apr 2010
Stanford-Binet and Wechsler Adult Intelligence Scale (WAIS) IQs were compared for a group of 74 adults with intellectual disability (ID). In every case, WAIS Full Scale IQ was higher than the Stanford-Binet Composite IQ, with a mean difference of 16.7 points. These differences did not appear to be due to the lower minimum possible score for the Stanford-Binet. Additional comparisons with other measures suggested that the WAIS might systematically underestimate severity of intellectual impairment. Implications of these findings are discussed regarding determination of disability status, estimating prevalence of ID, assessing dementia and aging-related cognitive declines, and diagnosis of ID in forensic cases involving a possible death penalty. (Contains 3 tables and 1 figure.)
Elsevier. 6277 Sea Harbor Drive, Orlando, FL 32887-4800. Tel: 877-839-7126; Tel: 407-345-4020; Fax: 407-363-1354; e-mail: usjcs@elsevier.com; Web site: http://www.elsevier.com
Publication Type: Journal Articles; Reports - Evaluative
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers - Assessments and Surveys: Stanford Binet Intelligence Scale; Wechsler Adult Intelligence Scale