Wechsler Adult Intelligence Scale-IV dyads for estimating global intelligence

Todd A Girard, Bradley N Axelrod, Ronak Patel, John R Crawford

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

All possible two-subtest combinations of the core Wechsler Adult Intelligence Scale-IV (WAIS-IV) subtests were evaluated as possible viable short forms for estimating full-scale IQ (FSIQ). Validity of the dyads was evaluated relative to FSIQ in a large clinical sample (N = 482) referred for neuropsychological assessment. Sample validity measures included correlations, mean discrepancies, and levels of agreement between dyad estimates and FSIQ scores. In addition, reliability and validity coefficients were derived from WAIS-IV standardization data. The Coding + Information dyad had the strongest combination of reliability and validity data. However, several other dyads yielded comparable psychometric performance, albeit with some variability in their particular strengths. We also observed heterogeneity between validity coefficients from the clinical and standardization-based estimates for several dyads. Thus, readers are encouraged to also consider the individual psychometric attributes, their clinical or research goals, and client or sample characteristics when selecting among the dyadic short forms.

Original languageEnglish
Pages (from-to)441-448
Number of pages8
JournalAssessment
Volume22
Issue number4
Early online date29 Sep 2014
DOIs
Publication statusPublished - Aug 2015

Fingerprint

Intelligence
Psychometrics
Reproducibility of Results
Research

Keywords

  • WAIS-IV
  • two-subtest short forms
  • intelligence assessment

Cite this

Wechsler Adult Intelligence Scale-IV dyads for estimating global intelligence. / Girard, Todd A; Axelrod, Bradley N; Patel, Ronak; Crawford, John R.

In: Assessment, Vol. 22, No. 4, 08.2015, p. 441-448.

Research output: Contribution to journalArticle

Girard, Todd A ; Axelrod, Bradley N ; Patel, Ronak ; Crawford, John R. / Wechsler Adult Intelligence Scale-IV dyads for estimating global intelligence. In: Assessment. 2015 ; Vol. 22, No. 4. pp. 441-448.
@article{32c568ada9a94bbd81920cf651af203a,
title = "Wechsler Adult Intelligence Scale-IV dyads for estimating global intelligence",
abstract = "All possible two-subtest combinations of the core Wechsler Adult Intelligence Scale-IV (WAIS-IV) subtests were evaluated as possible viable short forms for estimating full-scale IQ (FSIQ). Validity of the dyads was evaluated relative to FSIQ in a large clinical sample (N = 482) referred for neuropsychological assessment. Sample validity measures included correlations, mean discrepancies, and levels of agreement between dyad estimates and FSIQ scores. In addition, reliability and validity coefficients were derived from WAIS-IV standardization data. The Coding + Information dyad had the strongest combination of reliability and validity data. However, several other dyads yielded comparable psychometric performance, albeit with some variability in their particular strengths. We also observed heterogeneity between validity coefficients from the clinical and standardization-based estimates for several dyads. Thus, readers are encouraged to also consider the individual psychometric attributes, their clinical or research goals, and client or sample characteristics when selecting among the dyadic short forms.",
keywords = "WAIS-IV, two-subtest short forms, intelligence assessment",
author = "Girard, {Todd A} and Axelrod, {Bradley N} and Ronak Patel and Crawford, {John R}",
note = "{\circledC} The Author(s) 2014. Funding: The authors received no financial support for the research, authorship, and/or publication of this article.",
year = "2015",
month = "8",
doi = "10.1177/1073191114551551",
language = "English",
volume = "22",
pages = "441--448",
journal = "Assessment",
issn = "1073-1911",
publisher = "Sage Publications",
number = "4",

}

TY - JOUR

T1 - Wechsler Adult Intelligence Scale-IV dyads for estimating global intelligence

AU - Girard, Todd A

AU - Axelrod, Bradley N

AU - Patel, Ronak

AU - Crawford, John R

N1 - © The Author(s) 2014. Funding: The authors received no financial support for the research, authorship, and/or publication of this article.

PY - 2015/8

Y1 - 2015/8

N2 - All possible two-subtest combinations of the core Wechsler Adult Intelligence Scale-IV (WAIS-IV) subtests were evaluated as possible viable short forms for estimating full-scale IQ (FSIQ). Validity of the dyads was evaluated relative to FSIQ in a large clinical sample (N = 482) referred for neuropsychological assessment. Sample validity measures included correlations, mean discrepancies, and levels of agreement between dyad estimates and FSIQ scores. In addition, reliability and validity coefficients were derived from WAIS-IV standardization data. The Coding + Information dyad had the strongest combination of reliability and validity data. However, several other dyads yielded comparable psychometric performance, albeit with some variability in their particular strengths. We also observed heterogeneity between validity coefficients from the clinical and standardization-based estimates for several dyads. Thus, readers are encouraged to also consider the individual psychometric attributes, their clinical or research goals, and client or sample characteristics when selecting among the dyadic short forms.

AB - All possible two-subtest combinations of the core Wechsler Adult Intelligence Scale-IV (WAIS-IV) subtests were evaluated as possible viable short forms for estimating full-scale IQ (FSIQ). Validity of the dyads was evaluated relative to FSIQ in a large clinical sample (N = 482) referred for neuropsychological assessment. Sample validity measures included correlations, mean discrepancies, and levels of agreement between dyad estimates and FSIQ scores. In addition, reliability and validity coefficients were derived from WAIS-IV standardization data. The Coding + Information dyad had the strongest combination of reliability and validity data. However, several other dyads yielded comparable psychometric performance, albeit with some variability in their particular strengths. We also observed heterogeneity between validity coefficients from the clinical and standardization-based estimates for several dyads. Thus, readers are encouraged to also consider the individual psychometric attributes, their clinical or research goals, and client or sample characteristics when selecting among the dyadic short forms.

KW - WAIS-IV

KW - two-subtest short forms

KW - intelligence assessment

U2 - 10.1177/1073191114551551

DO - 10.1177/1073191114551551

M3 - Article

VL - 22

SP - 441

EP - 448

JO - Assessment

JF - Assessment

SN - 1073-1911

IS - 4

ER -