Technical and Practical Issues in the Structure and Clinical Invariance of the Wechsler Scales: A Rejoinder to Commentaries

Lawrence G. Weiss, Timothy Z. Keith, Jianjun Zhu, Hsin-Yi Chen

Research output: Contribution to journalArticle

12 Citations (Scopus)


This discussion article addresses issues related to expansion of the Wechsler model from four to five factors; multiple broad CHC abilities measured by the Arithmetic subtest; advantages and disadvantages of including complex tasks requiring integration of multiple broad abilities when measuring intelligence; limitations of factor analysis, which constrain test developers to creating specific broad and narrow abilities as opposed to integrative tasks; implications from brain imaging research showing the critical role of neurological pathways that integrate brain regions; close relationship of the fluid reasoning factor to g, and the inadequacies of factor analytically driven statistical definitions of g in the development of improved models of intelligence. In this rejoinder to the commentaries in this special issue on structural models of the WAIS-IV and WISC-IV, the advantages and disadvantages of Schmid-Leiman's transformation, which removes the effects of g on the broad abilities, and the use of nested or bifactor models in evaluating models of intelligence are also discussed.

Original languageEnglish
Pages (from-to)235-243
Number of pages9
JournalJournal of Psychoeducational Assessment
Issue number2
Publication statusPublished - 2013 Apr 1



  • CHC
  • arithmetic
  • factor structure

ASJC Scopus subject areas

  • Education
  • Clinical Psychology
  • Psychology(all)

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