Attention-deficit/hyperactivity disorder dimensionality: the reliable 'g' and the elusive 's' dimensions

Página do item simplificado
dc.contributor.authorWagner, Flavia
dc.contributor.authorMartel, Michelle M.
dc.contributor.authorCogo-Moreira, Hugo [UNIFESP]
dc.contributor.authorMoreira Maia, Carlos Renato
dc.contributor.authorPan, Pedro Mario [UNIFESP]
dc.contributor.authorRohde, Luis Augusto
dc.contributor.authorSalum, Giovanni Abrahao
dc.date.accessioned2019-01-21T10:30:16Z
dc.date.available2019-01-21T10:30:16Z
dc.date.issued2016
dc.description.abstractThe best structural model for attention-deficit/hyperactivity disorder (ADHD) symptoms remains a matter of debate. The objective of this study is to test the fit and factor reliability of competing models of the dimensional structure of ADHD symptoms in a sample of randomly selected and high-risk children and pre-adolescents from Brazil. Our sample comprised 2512 children aged 6-12 years from 57 schools in Brazil. The ADHD symptoms were assessed using parent report on the development and well-being assessment (DAWBA). Fit indexes from confirmatory factor analysis were used to test unidimensional, correlated, and bifactor models of ADHD, the latter including "g" ADHD and "s" symptom domain factors. Reliability of all models was measured with omega coefficients. A bifactor model with one general factor and three specific factors (inattention, hyperactivity, impulsivity) exhibited the best fit to the data, according to fit indices, as well as the most consistent factor loadings. However, based on omega reliability statistics, the specific inattention, hyperactivity, and impulsivity dimensions provided very little reliable information after accounting for the reliable general ADHD factor. Our study presents some psychometric evidence that ADHD specific ("s") factors might be unreliable after taking common ("g" factor) variance into account. These results are in accordance with the lack of longitudinal stability among subtypes, the absence of dimension-specific molecular genetic findings and non-specific effects of treatment strategies. Therefore, researchers and clinicians might most effectively rely on the "g" ADHD to characterize ADHD dimensional phenotype, based on currently available symptom items.en
dc.description.affiliationHosp Clin Porto Alegre, Attent Deficit Hyperact Disorder Program, BR-90035003 Porto Alegre, RS, Brazil
dc.description.affiliationUniv Fed Rio Grande do Sul, Porto Alegre, RS, Brazil
dc.description.affiliationUniv Kentucky, Lexington, KY USA
dc.description.affiliationCNPq, Natl Inst Dev Psychiat Children & Adolescents, Porto Alegre, RS, Brazil
dc.description.affiliationUniv Fed Sao Paulo, Sao Paulo, Brazil
dc.description.affiliationUniv Sao Paulo, Sao Paulo, Brazil
dc.description.affiliationUnifespUniv Fed Sao Paulo, Sao Paulo, Brazil
dc.description.sourceWeb of Science
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado do Rio Grande do Sul (FAPERGS)
dc.format.extent83-90
dc.identifierhttp://dx.doi.org/10.1007/s00787-015-0709-1
dc.identifier.citationEuropean Child & Adolescent Psychiatry. New York, v. 25, n. 1, p. 83-90, 2016.
dc.identifier.doi10.1007/s00787-015-0709-1
dc.identifier.issn1018-8827
dc.identifier.urihttp://repositorio.unifesp.br/handle/11600/49671
dc.identifier.wosWOS:000367594400010
dc.language.isoeng
dc.publisherSpringer
dc.relation.ispartofEuropean Child & Adolescent Psychiatry
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subjectBifactor modelen
dc.subjectHierarchicalen
dc.subjectADHDen
dc.subjectConfirmatory factor analysisen
dc.subjectImpulsivityDeficit Hyperactivity Disorderen
dc.subjectDsm-Iv Adhden
dc.subjectLatent Structureen
dc.subjectTaxometric Analysisen
dc.subjectBifactor Modelen
dc.subjectReliabilityen
dc.subjectSubtypesen
dc.subjectAlphaen
dc.subjectScaleen
dc.subjectTwinen
dc.titleAttention-deficit/hyperactivity disorder dimensionality: the reliable 'g' and the elusive 's' dimensionsen
dc.typeinfo:eu-repo/semantics/article
Arquivos
Coleções
EPM - Artigos