Long-term stability of the French WISC-IV: Standard and CHC index scores

Détails

ID Serval
serval:BIB_BBB25CEB388A
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Long-term stability of the French WISC-IV: Standard and CHC index scores
Périodique
Revue Européenne de Psychologie Appliquée
Auteur(s)
Kieng S., Rossier J., Favez N., Lecerf T.
ISSN
1162-9088
Statut éditorial
Publié
Date de publication
01/2017
Peer-reviewed
Oui
Volume
67
Numéro
1
Pages
51-60
Langue
anglais
Notes
Stabilité à long terme des indices standards et CHC du WISC-IV
Résumé
Abstract
Introduction
The assumption of the stability of intelligence is the source of the predictive value of the Intelligence Quotient (e.g., Full Scale IQ). However, few studies have investigated the long-term stability of one of the most frequently used tests in the field of cognitive assessment: the Wechsler Intelligence Scale for Children – 4th edition (WISC-IV).
Objective
For a deeper understanding and a better use of intelligence test scores, this study examined the long-term stability of the standard index scores and five CHC composite scores of the French WISC-IV.
Method
A test–retest procedure was used, with an average retest interval of 1.77 year (SD = 0.56 year). This study involved 277 French-speaking Swiss children aged between 7 and 12 years. Three types of stability analysis were conducted: (a) mean-level changes, (b) rank-order consistency and change, and (c) individual-level of change.
Results
The observed pattern of mean-level changes suggested a normative mean-level stability for the Verbal Comprehension Index (VCI), the Perceptual Reasoning Index (PRI), the General Ability Index (GAI), Comprehension-Knowledge (Gc), and Visual Processing (Gv). Regarding individual differences stability, only the FSIQ and the GAI reached a reliability of .80 required for making decisions about individuals. Using a two standard errors of measurement confidence interval (± 2 SEM), we examined individual-level stability. Results indicated that more than 70% of the children presented stable performances for the GAI, Gc, and Gv scores.
Conclusion
Together, nomothetic and idiographic perspectives suggested that the GAI, Gc, and Gv were the most stable scores in our non-clinical sample.
Mots-clé
WISC-IV, Long-term stability, Reliability, CHC, Intelligence
Web of science
Création de la notice
17/01/2018 0:07
Dernière modification de la notice
20/08/2019 15:29
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