Validity of the SNAP-IV For ADHD Assessment in South African Children With Neurodevelopmental Disorders

Michal R. Zieff, Michelle Hoogenhout, Emma Eastman, Björn U. Christ, Alice Galvin, Victoria de Menil, Amina Abubakar, Charles R. Newton, Elise Robinson, Kirsten A. Donald

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

This study investigated the psychometric properties of the Swanson, Nolan, and Pelham ADHD Rating Scale (SNAP-IV) in a sample of South African children with neurodevelopmental disorders (n = 201), primarily Autism Spectrum Disorder and Intellectual Disability. We conducted a confirmatory factor analysis to inspect the two-factor structure of the SNAP-IV. We also calculated ordinal coefficient alpha to estimate internal consistency. Fit statistics for the two-factor model approached acceptable levels. The model fit improved slightly after removing an item related to spoken language. The subscales had acceptable internal consistencies. Findings partially support the use of the SNAP-IV in this group of children. However, there are limitations to its performance in this population likely related to the presence of neurodevelopmental disorders.

Original languageEnglish
Pages (from-to)2851-2862
Number of pages12
JournalJournal of Autism and Developmental Disorders
Volume53
Issue number7
DOIs
Publication statusPublished - Jul 2023

Keywords

  • Attention-Deficit/Hyperactivity disorder
  • Behavior rating scale
  • Neurodevelopmental disorders
  • Psychometric
  • SNAP-IV

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