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Furthering the Understanding of Wechsler Adult Intelligence Scale-Fourth Edition Factor Structure in a Clinical Sample.

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Title: Furthering the Understanding of Wechsler Adult Intelligence Scale-Fourth Edition Factor Structure in a Clinical Sample.
Authors: Merz, Zachary C. (AUTHOR), Van Patten, Ryan (AUTHOR), Hurless, Nicole (AUTHOR), Grant, Alexandra (AUTHOR), McGrath, Andrew B. (AUTHOR)
Source: Applied Neuropsychology: Adult. Jan-Feb2021, Vol. 28 Issue 1, p12-23. 12p. 3 Diagrams, 3 Charts.
Subjects: Wechsler Adult Intelligence Scale, Factor structure, Confirmatory factor analysis, Degrees of freedom
Abstract: The Wechsler Adult Intelligence Scale, Fourth Edition (WAIS-IV) is a commonly administered battery for assessing intellectual and cognitive abilities. Despite its popularity, construct validation studies primarily utilize the WAIS-IV normative sample rather than ecologically-valid clinical samples. The current study expands the literature on the validity of WAIS-IV by testing a bifactor model in such a sample. We examined archival data from 300 concurrent psychological evaluations performed at a university-based community clinic. Participants received the full WAIS-IV standard battery. Consistent with recent literature, confirmatory factor analyses (CFAs) favored a direct hierarchical model, where the g factor has a direct influence on WAIS-IV subtest performance and index scores explain only modest degrees of residual variance. Results challenge traditional intelligence nosologies and suggest consideration of a two-step method of WAIS-IV interpretation in clinical samples, whereby the Full Scale IQ score (FSIQ) score is examined first and individual subtest scores are analyzed second. [ABSTRACT FROM AUTHOR]
Copyright of Applied Neuropsychology: Adult is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
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  Data: Furthering the Understanding of Wechsler Adult Intelligence Scale-Fourth Edition Factor Structure in a Clinical Sample.
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  Data: <searchLink fieldCode="AR" term="%22Merz%2C+Zachary+C%2E%22">Merz, Zachary C.</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Van+Patten%2C+Ryan%22">Van Patten, Ryan</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Hurless%2C+Nicole%22">Hurless, Nicole</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Grant%2C+Alexandra%22">Grant, Alexandra</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22McGrath%2C+Andrew+B%2E%22">McGrath, Andrew B.</searchLink> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Applied+Neuropsychology%3A+Adult%22">Applied Neuropsychology: Adult</searchLink>. Jan-Feb2021, Vol. 28 Issue 1, p12-23. 12p. 3 Diagrams, 3 Charts.
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  Data: <searchLink fieldCode="DE" term="%22Wechsler+Adult+Intelligence+Scale%22">Wechsler Adult Intelligence Scale</searchLink><br /><searchLink fieldCode="DE" term="%22Factor+structure%22">Factor structure</searchLink><br /><searchLink fieldCode="DE" term="%22Confirmatory+factor+analysis%22">Confirmatory factor analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Degrees+of+freedom%22">Degrees of freedom</searchLink>
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  Label: Abstract
  Group: Ab
  Data: The Wechsler Adult Intelligence Scale, Fourth Edition (WAIS-IV) is a commonly administered battery for assessing intellectual and cognitive abilities. Despite its popularity, construct validation studies primarily utilize the WAIS-IV normative sample rather than ecologically-valid clinical samples. The current study expands the literature on the validity of WAIS-IV by testing a bifactor model in such a sample. We examined archival data from 300 concurrent psychological evaluations performed at a university-based community clinic. Participants received the full WAIS-IV standard battery. Consistent with recent literature, confirmatory factor analyses (CFAs) favored a direct hierarchical model, where the g factor has a direct influence on WAIS-IV subtest performance and index scores explain only modest degrees of residual variance. Results challenge traditional intelligence nosologies and suggest consideration of a two-step method of WAIS-IV interpretation in clinical samples, whereby the Full Scale IQ score (FSIQ) score is examined first and individual subtest scores are analyzed second. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
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  Data: <i>Copyright of Applied Neuropsychology: Adult is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1080/23279095.2019.1585351
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      – Code: eng
        Text: English
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              Text: Jan-Feb2021
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              Y: 2021
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