Content area
Full Text
Abstract
The General Ability Index (GAI) and Cognitive Proficiency Index (CPI) are two index scores that can be calculated for the Wechsler Intelligence Scale for Children-Fourth Canadian Edition ((WISC-IV^sup CDN^). The GAI comprises the verbal comprehension and perceptual reasoning subtests and reflects reasoning abilities. The CPI includes the working memory and processing-speed subtests that are more focused on the proficiency and efficiency of cognitive processing. This article presents GAI and CPI patterns observed in several small samples of referred children and includes three brief case examples of how the scores can provide another lens for analyzing children's abilities with the WISC-IV^sup CDN^.
Résumé
L'indice d'aptitude général (IAG) et l'indice de compétence cognitive (ICC) sont deux types de calculs alternatifs au quotient intellectuel total (QIT) du WISC-IV^sup CDN^). L'IAG se compose des sous-épreuves de la comprehension verbale et du raisonnement perceptif, et reflète les habiletés de raisonnement. L'ICC se compose des sousépreuves de la mémoire temporaire de travail et de la vitesse de traitement de l'information. Cet indice reflète la compétence et l'efficacité du traitement cognitif et fournit un autre point de vue objectif pour analyser les capacités des enfants évaluées par le WISC-IV. Cet article présente des patrons du IAG et du ICC observés dans des petites populations cliniques et inclu trois brefs exemples, en format d'étude de cas, qui démontrent comment les scores de ceux-ci peuvent fournir une autre façon d'analyser les habiletés des enfants en se servant du WISC-IV^sup CDN^.
Keywords
WISC-IV, Wechsler Intelligence Tests, General Ability Index, Cognitive Proficiency Index, index scores, clinical populations
The Wechsler Intelligence Scale for Children-Fourth Edition (WISC-IV; Wechsler, 2003, 2004) is among the most widely used tests to assess the cognitive abilities of children aged 6 to 16 years. The four index scores consisting of Verbal Comprehension Index (VCI), Perceptual Reasoning Index (PRI), Working Memory Index (WMI), and Processing Speed Index (PSI) along with the Full-Scale IQ (FSIQ) are recognized as the basis for clinical interpretation of the WISC-IV. The General Ability Index (GAI) and Cognitive Proficiency Index (CPI) are two further composite scores that may have potential clinical relevance in the assessment of and treatment planning for children referred for psychoeducational difficulties (Prifitera, Saklofske, & Weiss, 2008; Saklofske, Zhu, Coalson, Raiford, & Weiss, 2010)....