Maternal ratings of the ADHD symptoms : Subtypes versus severity in clinic-referred children and adolescents
- Authors: Gomez, Rapson , Vance, Alasdair , Gomez, Rashika
- Date: 2016
- Type: Text , Journal article
- Relation: Journal of Attention Disorders Vol. 20, no. 5 (2016), p. 414-423
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- Description: 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). METHOD: 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. CONCLUSION: The findings are discussed in relation to dimensional and categorical views of ADHD.
The factor structure of anxiety and depressive disorders in a sample of clinic-referred adolescents
- Authors: Gomez, Rapson , Vance, Alasdair , Gomez, Rashika
- Date: 2014
- Type: Text , Journal article
- Relation: Journal of Abnormal Child Psychology Vol. 42, no. 2 (2014), p. 321-332
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- Description: Abstract The current study used confirmatory factor analysis (CFA) to examine the factor structure of anxiety and depressive disorders in a sample of clinic-referred adolescents, aged between 12 and 18 years, for diagnoses based on parent (N = 655; male = 441) and adolescent (N = 626; male = 417) interviews. Three models were examined: a 1-factor model, with all anxiety and depressive disorders in a single factor; a DSM-based 2-factor model, with anxiety disorders in one factor, and depressive disorders in another factor; and an alternate 2-factor model, with fear related anxiety disorders in one factor, and other anxiety and depressive disorders in another factor. The findings indicated support for all three models. Also, ADHD and ODD/CD were associated with only the shared variances between the latent factors in the 2-factor models, and not their unique variance. The implications of the findings for taxonomy, comorbidity, and clinical practice are discussed. © 2013 Springer Science+Business Media New York.