Evaluation of the Psychometric Properties of the Social Communication Questionnaire in Rural Kenya.

Autism Kenya Psychometrics Screening

Journal

Journal of autism and developmental disorders
ISSN: 1573-3432
Titre abrégé: J Autism Dev Disord
Pays: United States
ID NLM: 7904301

Informations de publication

Date de publication:
30 May 2024
Historique:
accepted: 22 04 2024
medline: 31 5 2024
pubmed: 31 5 2024
entrez: 30 5 2024
Statut: aheadofprint

Résumé

Children can be reliably diagnosed with autism as early as 3 years of age, and early interventions are initiated. There is often a significant gap between the age of onset of symptoms (2-3 years) and diagnosis (8-10 years) in Africa. We conducted a study to validate the Social Communication Questionnaire (SCQ) as a screening instrument in a rural setting in Kenya. The study was conducted along the Kenyan Coast. Study participants included 172 children with a neurodevelopmental disorder (NDD) diagnosis (84 of which were autism) and 112 controls. Internal consistency was evaluated through the use of Cronbach's alpha, confirmatory factor analysis (CFA) with maximum likelihood procedure to assess the conceptual model for the SCQ. Additionally, the sensitivity and specificity of cut-off scores using ROC analysis and item difficulties and discrimination quality using an IRT framework were also assessed. Factor analysis revealed an adequate fitting model for the three-factor DSM-IV-TR (root mean squared error of approximation (RMSEA) = 0.050; Comparative Fit Index (CFI) = 0.974; Tucker-Lewis Index (TLI) = 0.973) and two-factor DSM-5 factor structure (RMSEA = 0.050; CFI = 0.972; TLI = 0.974). The reliability coefficient alphas for the whole group for all items (Cronbach's α = 0.90) and all three domains (Cronbach's α = 0.68-0.84) were acceptable to excellent. The recommended cut-off score of 15 yielded 72% sensitivity and 100% specificity in the ASD group compared to the typically developing group. We provide early evidence of the adequate factor structure and good internal consistency of the SCQ. We also note that the recommended cut-off yielded sufficient predictive validity.

Identifiants

pubmed: 38816602
doi: 10.1007/s10803-024-06380-9
pii: 10.1007/s10803-024-06380-9
doi:

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Informations de copyright

© 2024. The Author(s).

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Auteurs

Patricia Kipkemoi (P)

Neuroscience Unit, KEMRI-Wellcome Trust Research Programme, P.O Box 230-80108, Kilifi, Kenya. pkipkemoi@kemri-wellcome.org.
Complex Trait Genetics Department, Center for Neurogenomics and Cognitive Research (CNCR), Vrije Universiteit Amsterdam, Amsterdam, Netherlands. pkipkemoi@kemri-wellcome.org.

Jeanne E Savage (JE)

Complex Trait Genetics Department, Center for Neurogenomics and Cognitive Research (CNCR), Vrije Universiteit Amsterdam, Amsterdam, Netherlands.

Joseph Gona (J)

Neuroscience Unit, KEMRI-Wellcome Trust Research Programme, P.O Box 230-80108, Kilifi, Kenya.

Kenneth Rimba (K)

Neuroscience Unit, KEMRI-Wellcome Trust Research Programme, P.O Box 230-80108, Kilifi, Kenya.

Martha Kombe (M)

Neuroscience Unit, KEMRI-Wellcome Trust Research Programme, P.O Box 230-80108, Kilifi, Kenya.

Paul Mwangi (P)

Neuroscience Unit, KEMRI-Wellcome Trust Research Programme, P.O Box 230-80108, Kilifi, Kenya.

Collins Kipkoech (C)

Neuroscience Unit, KEMRI-Wellcome Trust Research Programme, P.O Box 230-80108, Kilifi, Kenya.

Danielle Posthuma (D)

Complex Trait Genetics Department, Center for Neurogenomics and Cognitive Research (CNCR), Vrije Universiteit Amsterdam, Amsterdam, Netherlands.
Department of Child and Adolescent Psychology and Psychiatry, Complex Trait Genetics, Amsterdam University Medical Centres, Vrije Universiteit Amsterdam, Amsterdam Neuroscience, Amsterdam, The Netherlands.

Charles R J C Newton (CRJC)

Neuroscience Unit, KEMRI-Wellcome Trust Research Programme, P.O Box 230-80108, Kilifi, Kenya.
Department of Psychiatry, University of Oxford, Warneford Hospital, Warneford Ln, Oxford, OX3 7JX, UK.
Department of Public Health, Pwani University, P.O. BOX, Kilifi, 195-80108, Kenya.
Institute for Human Development, Aga Khan University, P.O. BOX, Nairobi, 30270-00100, Kenya.

Amina Abubakar (A)

Neuroscience Unit, KEMRI-Wellcome Trust Research Programme, P.O Box 230-80108, Kilifi, Kenya.
Department of Psychiatry, University of Oxford, Warneford Hospital, Warneford Ln, Oxford, OX3 7JX, UK.
Department of Public Health, Pwani University, P.O. BOX, Kilifi, 195-80108, Kenya.
Institute for Human Development, Aga Khan University, P.O. BOX, Nairobi, 30270-00100, Kenya.

Classifications MeSH