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Processing Speed Index

  • Living reference work entry
  • First Online:
Encyclopedia of Clinical Neuropsychology

  • 45 Accesses

Synonyms

PSI; Processing Speed Quotient (WPSSI-III); Processing Speed Scale (WAIS-IV)

Definition

A score derived from administration of selected subtests from the third and fourth edition Wechsler Intelligence Scales designed to provide a measure of a person’s ability to process visually presented information quickly.

Current Knowledge

Wechsler Intelligence Scales (WIS): The WIS family of tests is some of the most widely used test batteries to assess general intellectual ability in adults aged 16 years or older (Wechsler Adult Intelligence Scale (WAIS)), children aged 6–16 years (Wechsler Intelligence Scale for Children (WISC)), and children aged 2–7 years (Wechsler Preschool and Primary Scale of Intelligence (WPPSI)). Since the original development of these tests (WAIS 1955; WISC 1949; WPPSI 1967), all three batteries have been revised on several occasions. The most recent revisions were published in 2012 (WPPSI-IV), 2014 (WISC-V), and 2008 (WAIS-IV).

History: Originally, one of the...

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Further Readings

  • Atkinson, L. (1991). Some tables 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: Wiley.

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

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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: Academic.

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Author information

Authors and Affiliations

  1. Defense and Veterans Brain Injury Center, Walter Reed National Military Medical Center, Bethesda, MD, USA

    Rael T. Lange & Sara M. Lippa

Authors
  1. Rael T. Lange
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  2. Sara M. Lippa
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Corresponding author

Correspondence to Rael T. Lange .

Editor information

Editors and Affiliations

  1. Richmond, Virgin Islands, USA

    Jeffrey Kreutzer

  2. Kessler Foundation , West Orange, New Jersey, USA

    John DeLuca

  3. Suite 200 , Wynnewood, Pennsylvania, USA

    Bruce Caplan

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© 2016 Springer International Publishing AG

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Lange, R.T., Lippa, S.M. (2016). Processing Speed Index. In: Kreutzer, J., DeLuca, J., Caplan, B. (eds) Encyclopedia of Clinical Neuropsychology. Springer, Cham. https://doi.org/10.1007/978-3-319-56782-2_1322-2

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  • DOI: https://doi.org/10.1007/978-3-319-56782-2_1322-2

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-56782-2

  • Online ISBN: 978-3-319-56782-2

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