Journal article
IQ estimate smackdown: Comparing IQ proxy measures to the WAIS-III
Journal of the International Neuropsychological Society, Vol.15(4), pp.590-596
07/01/2009
DOI: 10.1017/S1355617709090766
PMID: 19573277
Abstract
Brief assessments of general cognitive ability are frequently needed by neuropsychologists, and many methods of estimating intelligence quotient (IQ) have been published. While these measures typically present overall correlations with the Wechsler Adult Intelligence Scale (WAIS) Full Scale IQ, it is tacitly acknowledged that these estimates are most accurate within I standard deviation of the mean and that accuracy diminishes moving toward the tails of the IQ distribution. However, little work has been done to systematically characterize proxy measures at the tails of the IQ distribution. Additionally, while these measures are all correlated with the WAIS, multiple proxy measures are rarely presented in one manuscript. The Current article has two goals: (1) Examine various IQ proxies against Wechsler Adult Intelligence Scale (Third Version) scores, showing the overall accuracy of each measure against the gold standard IQ measure. This comparison will assist in selecting the best proxy measure for particular clinical constraints. (2) The sample is then divided into three groups (below, average, and above-average ability), and each group is analyzed separately to characterize proxy performance at the tails of the IQ distribution. Repeated measures multivariate analysis of variance compares the different proxy measures across ability levels. All IQ estimates are represented in tables so that they can be examined side by side. (JINS, 2009, 15, 590-596.)
Details
- Title: Subtitle
- IQ estimate smackdown: Comparing IQ proxy measures to the WAIS-III
- Creators
- Ruth Spinks - University of IowaLowell W. McKirgan - University of IowaStephan Arndt - University of IowaKristin Caspers - University of IowaRebecca Yucuis - University of IowaChristopher J. Pfalzgraf - University of Iowa
- Resource Type
- Journal article
- Publication Details
- Journal of the International Neuropsychological Society, Vol.15(4), pp.590-596
- DOI
- 10.1017/S1355617709090766
- PMID
- 19573277
- ISSN
- 1355-6177
- eISSN
- 1469-7661
- Publisher
- Cambridge Univ Press
- Number of pages
- 7
- Grant note
- R01DA005821 / NATIONAL INSTITUTE ON DRUG ABUSE; United States Department of Health & Human Services; National Institutes of Health (NIH) - USA; NIH National Institute on Drug Abuse (NIDA); European Commission R01 DA005821 / NIDA NIH HHS; United States Department of Health & Human Services; National Institutes of Health (NIH) - USA; NIH National Institute on Drug Abuse (NIDA)
- Language
- English
- Date published
- 07/01/2009
- Academic Unit
- Psychiatry; Biostatistics; Nursing; Injury Prevention Research Center
- Record Identifier
- 9985132073402771
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