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Floor effects on the WISC-IV

Whitaker, Simon and Gordon, Shirley (2012) Floor effects on the WISC-IV. International Journal of Developmental Disabilitiess, 58 (2). pp. 111-119. ISSN 2047-3869

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Seventeen 16-year-olds in special education were given both the Wechsler Adult Intelligence Scale (WAIS)-III and the Wechsler Intelligence Scale for Children (WISC)-IV in counterbalanced order. It was found that there was a significant floor effect on the WISC-IV due to low raw scores and raw scores of 0 being given a scaled score of 1. Extrapolating the relationship between raw scores and scaled scores down below raw score, one showed that the WISC-IV may be overestimating some low intelligence quotients (IQs) by several IQ point due to this floor effect.

Item Type: Article
Additional Information: © The British Society of Developmental Disabilities 2012
Subjects: L Education > LC Special aspects of education
Schools: School of Human and Health Sciences
School of Human and Health Sciences > Centre for Applied Psychological Research
School of Human and Health Sciences > Centre for Health and Social Care Research
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Depositing User: Cherry Edmunds
Date Deposited: 21 Feb 2012 09:17
Last Modified: 28 Aug 2021 20:59


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