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Cross-cultural applicability and reduction of the American seven-subtest short form of the WAIS on a Swedish non-clinical sample
Stockholm University, Faculty of Social Sciences, Department of Psychology, Cognitive psychology.
Stockholm University, Faculty of Social Sciences, Department of Psychology, Clinical psychology.
2019 (English)In: Nordic Psychology, ISSN 1901-2276, E-ISSN 1904-0016, Vol. 71, no 3, p. 148-163Article in journal (Refereed) Published
Abstract [en]

The study aimed at investigating whether the seven-subtest short form based on WAIS-R (Ward 1990) was statistically valid to use on the Swedish version of Wechsler Adult Intelligence Scale, Fourth Edition (WAIS-IV), if this abbreviation was fit to catch the heterogeneity in test performance across age and if this brief measure was possible to abbreviate even more. WAIS-IV data from a non-clinical sample consisting of 261 participants ranging between 18 and 74 in age was analyzed with bivariate and multiple regression analyses, a prorating method for calculation of Full Scale IQ (FSIQ) and its indices as well as paired-samples t-test. The results were contradictory. When the original WAIS-IV was compared to the seven-subtest short form the results showed a good congruence on FSIQ-level between the two sets, but on index level there were several cases of mismatches. In the younger and middle aged sample (<55 years) results on FSIQ as well as index level were in accordance, whereas in the elderly group (∼55 years) they were incongruent. The best reduction of the seven-subtest short form was a four-subtest model, encompassing Block Design, Similarities, Arithmetic and Coding, one subtest from each index, but the t-tests indicated several cases of mismatches between the full WAIS-IV measures and the prorated scores. Applied on the Swedish version of the WAIS-IV the seven-subtest formula appears to be applicable on an FSIQ level, to be suitable for a younger sample, but not for an elderly. Otherwise, this model and the four-subtest model are recommended to be used with caution.

Place, publisher, year, edition, pages
2019. Vol. 71, no 3, p. 148-163
Keywords [en]
WAIS-IV, short form, cross-cultural, Scandinavian version, age heterogeneity
National Category
Psychology
Research subject
Psychology
Identifiers
URN: urn:nbn:se:su:diva-171366DOI: 10.1080/19012276.2018.1520643ISI: 000479161200002OAI: oai:DiVA.org:su-171366DiVA, id: diva2:1340679
Available from: 2019-08-06 Created: 2019-08-06 Last updated: 2019-09-16Bibliographically approved

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CiteExportLink to record
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