201. WISC-IV and low IQ: review and comparison with the WAIS-III.
- Author
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Whitaker, Simon
- Subjects
- *
CHILDREN with learning disabilities , *INTELLIGENCE levels , *CHILDREN with intellectual disabilities , *PEOPLE with learning disabilities , *INTELLIGENCE tests - Abstract
The WISC-IV is likely to be in common use for the assessment of children with low intellectual ability for the next 10-12 years. There are several concerns about its uses with these children. Some children may not understand the instructions on some subtests, notably for letter-number sequencing. There may be an unacknowledged floor effect that will result in an overestimate of intellectual ability. The percentile ratings given in the manual are inaccurate for percentiles below 1%. Evidence is presented that the WISC-IV may systematically give lower IQ scores than the WAIS-III when assessing low IQ. [ABSTRACT FROM AUTHOR]
- Published
- 2008
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