title: Maternal Ratings of the ADHD Symptoms: Subtypes Versus Severity in Clinic-Referred Children and Adolescents.
abstract: OBJECTIVE
  This study used confirmatory factor analysis (CFA), latent class analysis (LCA), and factor mixture model (FMM) to ascertain the best model for ADHD symptoms, as presented in the Strengths and Weaknesses of ADHD-Symptoms and Normal Behavior Scale (SWAN).
  
  
  METHODS
  Mother ratings of the ADHD symptoms of 418 clinic-referred children and adolescents were obtained.
  
  
  RESULTS
  The findings provided most support for an FMM with two classes (less severe inattention [IA] and hyperactivity/impulsivity [HI] symptoms and more severe IA/HI symptoms) and two factors (IA and HI) model. The more severe class had more individuals with the ADHD diagnosis, especially the combined type.
  
  
  CONCLUSIONS
  The findings are discussed in relation to dimensional and categorical views of ADHD.
authors.affiliation: University of Ballarat, Victoria, Australia rapson.gomez@ballarat.edu.au.
authors.forename: Rapson
authors.initials: R
authors.lastname: Gomez
authors.affiliation: The University of Melbourne, Victoria, Australia.
authors.forename: Alasdair
authors.initials: A
authors.lastname: Vance
authors.affiliation: The University of Melbourne, Victoria, Australia.
authors.forename: Rashika Miranjani
authors.initials: RM
authors.lastname: Gomez
mesh_terms: D000293:Adolescent; D000554:Ambulatory Care Facilities; D001289:Attention Deficit Disorder with Hyperactivity / Q000145:classification* / Q000175:diagnosis / Q000523:psychology*; D002648:Child; D039721:Diagnostic and Statistical Manual of Mental Disorders; D005163:Factor Analysis, Statistical; D005260:Female; D006801:Humans; D007175:Impulsive Behavior; D008297:Male; D008960:Models, Psychological; D009035:Mothers / Q000523:psychology*; D011569:Psychiatric Status Rating Scales; D012720:Severity of Illness Index
keywords: ADHD; categorical model; clinic-referred; confirmatory factor analysis; dimensional model; factor mixture model; latent class analysis