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Factor structure of the Wechsler Adult Intelligence Scale – revised (WAIS–R): A clinical sample
Author(s) -
Burgess Adrian,
Flint Janis,
Adshead Heidi
Publication year - 1992
Publication title -
british journal of clinical psychology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.479
H-Index - 92
eISSN - 2044-8260
pISSN - 0144-6657
DOI - 10.1111/j.2044-8260.1992.tb01002.x
Subject(s) - wechsler adult intelligence scale , psychology , memory span , categorization , wechsler preschool and primary scale of intelligence , factor (programming language) , developmental psychology , sample (material) , psychometrics , wechsler intelligence scale for children , clinical psychology , cognition , working memory , psychiatry , artificial intelligence , chemistry , chromatography , computer science , programming language
Factor analysis was performed on a heterogeneous clinical sample of neurological patients. Both a two‐ and a three‐factor model were extracted. The two‐factor solution corresponded to Wechsler's categorization of verbal and performance subtests. The three‐factor solution suggested a verbal comprehension factor, a perceptual organization and a third factor with highest loadings on digit span, arithmetic and digit symbol. Both models were consistent with factor models obtained from the standardization sample. As has previously been reported in neurologically impaired samples, the third factor was relatively more prominent than in the standardization sample. This study provides further evidence for the robustness of the WAIS–R factor structure across different populations and gives good support for the use of the WAIS–R in British clinical samples.