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Verbal Comprehension Index

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VCI; Verbal comprehension scale (WAIS-IV)


The Verbal Comprehension Index (VCI) is a score derived from the administration of selected subtests from the third and fourth edition Wechsler Adult Intelligence Scale (WAIS) and Wechsler Intelligence Scale for Children (WISC). The VCI is designed to provide a measure of verbal acquired knowledge and verbal reasoning.

Current Knowledge

Wechsler Intelligence Scales: The WAIS and WISC are two of the most widely used tests to assess general intellectual ability in adults aged 16 years or above (WAIS) and children aged 6–16 years (WISC). Since the original development of these scales (WAIS, 1955; WISC, 1949), both tests have been revised on several occasions. The most recent revisions were published in 2003 (WISC-IV) and 2008 (WAIS-IV).

History: Until recently, one of the most prominent features of the Wechsler Intelligence Scales (WIS) was the derivation and interpretation of IQ scores. Using this framework, the Full Scale IQ...

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References and Readings

  • Atkinson, L. (1991). Some table for statistically based interpretation of WAIS-R factor scores. Psychological Assessment, 3(2), 288–291.

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  • Kaufman, A. S., & Lichtenberger, E. O. (2006). Assessing adolescent and adult intelligence (3rd ed.). Hoboken, NJ: Wiley.

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  • Sattler, J. M. (2008). Assessment of children: Cognitive foundations (5th ed.). San Diego, CA: Sattler Press.

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  • Tulsky, D. S., Saklofske, D. H., & Zhu, J. (2003). Revising a standard: An evaluation of the origin and development of the WAIS-III. In D. S. Tulsky, et al. (Eds.), Clinical interpretation of the WAIS-III and WMS-III (pp. 43–92). San Diego, CA: Academic Press.

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© 2011 Springer Science+Business Media, LLC

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Lange, R.T. (2011). Verbal Comprehension Index. In: Kreutzer, J.S., DeLuca, J., Caplan, B. (eds) Encyclopedia of Clinical Neuropsychology. Springer, New York, NY.

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