Definition
A score derived from the administration of selected subtests from the fifth edition Wechsler Intelligence Scale for Children (WISC-V) and the fourth edition Wechsler Preschool and Primary Scale of Intelligence (WPPSI-V). The Fluid Reasoning Index (FRI) provides a measure of fluid and inductive conceptual thinking and simultaneous processing.
Current Knowledge
Wechsler Intelligence Scales (WIS): The WPPSI and WISC are two of the most widely used tests to assess general intellectual ability in children aged 2–7 (WPPSI) and children aged 6–16 years (WISC). Since the original development of these scales (Wechsler 1949, 1967), both tests have been revised on several occasions. The most recent revisions were published in 2012 (WPPSI-IV) and 2014 (WISC-V).
History: Originally, one of the most prominent features of the WIS was the derivation and interpretation of IQ scores. Using this framework, the Full Scale IQ score provided a measure of general intellectual ability that was...
Further Readings
Atkinson, L. (1991). Some table for statistically based interpretation of WAIS-R factor scores. Psychological Assessment, 3(2), 288–291.
Wechsler, D. (1949). Wechsler intelligence scale for children. New York: The Psychological Corporation.
Wechsler, D. (1967). Manual for the wechsler preschool and primary scale of intelligence. San Antonio, TX: The Psychological Corporation.
Wechsler, D. (2012). Wechsler preschool and primary scale of intelligence-fourth edition technical and interpretive manual. Bloomington: Pearson.
Wechsler, D. (2014). Wechsler intelligence scale for children-fifth edition technical and interpretive manual. Bloomington: Pearson.
Weiss, L. G., Holdnack, J. A., Saklofske, D. H., & Prifitera, A. (2015). Theoretical and clinical foundations of the WISC-V index scores. In L. G. Weiss et al. (Eds.), WISC-V assessment and interpretation: Scientist-practitioner perspectives (pp. 97–121). San Diego: Academic.
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Lippa, S.M., Lange, R.T. (2017). Fluid Reasoning. In: Kreutzer, J., DeLuca, J., Caplan, B. (eds) Encyclopedia of Clinical Neuropsychology. Springer, Cham. https://doi.org/10.1007/978-3-319-56782-2_9131-1
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DOI: https://doi.org/10.1007/978-3-319-56782-2_9131-1
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