Title

Matters Of Consequence: An Empirical Investigation Of The Wais-Iii And Wais-Iv And Implications For Addressing The Atkins Intelligence Criterion

Keywords

Atkins; expert testimony; intelligence; intelligence quotient; Wechsler Adult Intelligence Scale

Abstract

"Which test provides the better measurement of intelligence, the Wechsler Adult Intelligence Scale-Third Edition (WAIS-III) or the Wechsler Adult Intelligence Scale-Fourth Edition (WAIS-IV)?" is an important question to professional psychologists; however, it has become a critical issue in Atkins cases wherein courts are often presented with divergent Full-Scale IQ (FSIQ) scores on the WAIS-III and WAIS-IV. In these instances, courts are required to render a decision stating which test provided the better measure of an inmate's intellectual functioning. This study employed structural equation modeling to empirically determine which instrument; the WAIS-III or the WAIS-IV, provides the better measure of intelligence via the FSIQ score. Consistent with the publisher's representation of intellectual functioning, the results from this study indicate the WAIS-IV provides superior measurement, scoring, and structural models to measure FSIQ when compared to the WAIS-III. © 2013 Copyright Taylor & Francis Group, LLC.

Publication Date

1-1-2013

Publication Title

Journal of Forensic Psychology Practice

Volume

13

Issue

1

Number of Pages

27-48

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1080/15228932.2013.746913

Socpus ID

84873155623 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84873155623

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