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Assessing Working Memory in Children: The Comprehensive Assessment Battery for Children – Working Memory (CABC-WM)
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Is WISC-IV Working Memory Index associated with ADHD symptoms in 7-8-year-olds?

Maria Marinopoulou1,2, Maria Unenge Hallerbäck3,4, Carl-Gustaf Bornehag4,5

  • 1Gillberg Neuropsychiatry Centre, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.

Applied Neuropsychology. Child
|February 13, 2023
PubMed
Summary
This summary is machine-generated.

Working Memory Index (WMI) deficits in children are not always linked to behavioral regulation or hyperactivity/inattention problems. Many children with low WMI do not exhibit ADHD symptoms, indicating a complex relationship.

Keywords:
Community sampleWISC-IVhyperactivityinattentionworking memory

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Area of Science:

  • Child Psychology
  • Neurodevelopmental Disorders
  • Educational Psychology

Background:

  • The Working Memory Index (WMI) from the Wechsler Intelligence Scale for Children (WISC) is often linked to Attention-Deficit/Hyperactivity Disorder (ADHD) symptoms.
  • However, the precise relationship between WMI and ADHD symptoms within the general population remains unclear.
  • Understanding this link is crucial for accurate diagnosis and intervention in children.

Purpose of the Study:

  • To investigate the association between working memory (WM) and behavioral regulation (BR), and hyperactivity/inattention (HI) in a general population of 7-8-year-olds.
  • To determine if general intellectual functioning correlates with BR and HI.
  • To assess if children with low WMI meet elevated ADHD criteria.

Main Methods:

  • A general population sample of 865 children aged 7-8 years was assessed using the WISC (Fourth Edition).
  • Additional assessments included the Behavior Rating Inventory of Executive Function, Strengths and Difficulties Questionnaire, and the Five to Fifteen Questionnaire.
  • Participants were categorized into three groups based on WM function and the presence of BR and/or HI problems.

Main Results:

  • WM deficits were identified in 22% of the sample, but most did not present with BR or HI issues.
  • Only 4% of the total group exhibited both WM deficits and BR/HI problems.
  • Among those with WM deficits and BR/HI issues, approximately one-third met criteria for inattentive ADHD.
  • WM and prosocial behavior were significantly associated with BR and HI.

Conclusions:

  • WM deficits, as measured by the WISC WMI in 7-8-year-olds, do not invariably indicate behavioral regulation or hyperactivity/inattention problems.
  • The findings suggest that low WMI alone is not a sufficient predictor of ADHD symptoms in the general population.
  • Further research is needed to elucidate the complex interplay between WM, executive functions, and behavioral outcomes.