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Cited by 31Autism Spectrum Disorder ResearchAttention Deficit Hyperactivity DisorderDevelopmental and Educational Neuropsychology

Differentiating among Children with PDD-NOS, ADHD, and Those with a Combined Diagnosis on the Basis of WISC-III Profiles

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Scheirs, J. G. M., Timmers, E. A.·2009·Journal of Autism and Developmental Disorders
DOI 10.1007/s10803-008-0657-4
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Abstract

Pervasive Developmental Disorder-Not Otherwise Specified (PDD-NOS) and Attention Deficit/Hyperactivity Disorder (ADHD) have partly overlapping symptoms. It can also be debated whether a third diagnostic category exists: children with a combined diagnosis. In this study an attempt was made to distinguish among the three groups on the basis of intelligence (WISC-III) profiles. It was found that the PDD-NOS group had higher verbal and performance IQ's, as well as higher WISC-III index scores than the ADHD group. Subtests Block Design and Mazes discriminated best. It was concluded that based on intelligence scores, only PDD-NOS and ADHD emerged as distinct categories, whereas the combined diagnosis did not. Future research on the distinctiveness of these diagnostic groups, however, should include variables other than IQ.

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  • The Wechsler scales are among the most common test batteries used worldwide by clinicians to assess specific domains of cognitive abilities in children and adolescents with ADHD.

    “The Wechsler scales are among the most common test batteries used worldwide by clinicians to assess specific domains of cognitive abilities in children and adolescents with ADHD (Becker et al. 2021; Mayes and Calhoun 2006; Scheirs and Timmers 2009).”

    From Measurement Invariance of the WISC-V across a Clinical Sample of Children and Adolescents with ADHD and a Matched Control Group (2024) · cites this paper as Scheirs and Timmers 2009

    The Measures and Statistical Procedures section reports using the WISC-III to assess IQ and specific cognitive domains in children, including those with ADHD. The paper also describes intelligence-profile assessment as common practice. It does not establish that Wechsler scales are among the most common test batteries used by clinicians worldwide, or specifically substantiate that claim for adolescents. (LLM, conf=0.84)

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Authors
Scheirs, J. G. M., & Timmers, E. A.
Affiliations
Tilburg University (NL)
Corresponding author
Scheirs, J. G. M.
Venue
Journal of Autism and Developmental Disorders
Publisher
Springer Science and Business Media LLC
Published
2008-10-22
Volume
39
Issue
4
Pages
549-556
ISSN
  • 0162-3257 (ISSN-L)
  • 1573-3432
DOI
10.1007/s10803-008-0657-4
OpenAlex
W1975392435
Cited by
31
References
5
Citations by year
2025: 1 · 2024: 1 · 2023: 1 · 2021: 3 · 2020: 1 · 2019: 2 · 2018: 2 · 2017: 1 · 2015: 3 · 2014: 4 · 2013: 2 · 2012: 3
FWCI
1.21
Type
journal article
Language
en
Open access
Licence
cc-by-nc
Locations
  • Journal of Autism and Developmental Disorders (publishedVersion, cc-by-nc)
  • PubMed (publishedVersion)
  • Research portal (Tilburg University) (submittedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion, other-oa)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Autism Spectrum Disorder Research
  • Health Sciences › Medicine › Psychiatry and Mental health › Attention Deficit Hyperactivity Disorder
  • Social Sciences › Psychology › Neuropsychology and Physiological Psychology › Developmental and Educational Neuropsychology
Keywords
pervasive developmental disorder not otherwise specified, attention deficit hyperactivity disorder, combined diagnosis, WISC-III, intelligence profiles, diagnostic differentiation, verbal IQ, performance IQ, block designs, mazes, children
MeSH terms
Adolescent, Attention Deficit Disorder with Hyperactivity, Child, Child Development Disorders, Pervasive, Diagnosis, Differential, Female, Humans, Intelligence, Male, Netherlands, Neuropsychological Tests, Psychomotor Performance, Severity of Illness Index, Verbal Behavior, Comorbidity

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