ERIC Number: EJ889775
Record Type: Journal
Publication Date: 2010-Aug
Abstractor: As Provided
Reference Count: 0
Revisiting the Latent Structure of ADHD: Is There a "g" Factor?
Martel, Michelle M.; von Eye, Alexander; Nigg, Joel T.
Journal of Child Psychology and Psychiatry, v51 n8 p905-914 Aug 2010
Background: Attention-deficit/hyperactivity disorder (ADHD) is presumed to be heterogeneous, but the best way to describe this heterogeneity remains unclear. Considerable evidence has accrued suggesting that inattention versus hyperactivity-impulsivity symptom domains predict distinct clinical outcomes and may have partially distinct etiological influence. As a result, some conceptualizations emphasize two distinct inputs to the syndrome. Yet formal testing of models that would accommodate such assumptions using modern methods (e.g., second-order factor and bifactor models) has been largely lacking. Methods: Participants were 548 children (321 boys) between the ages of 6 and 18 years. Of these 548 children, 302 children met DSM-IV criteria for ADHD, 199 were typically developing controls without ADHD, and 47 were classified as having situational or subthreshold ADHD. ADHD symptoms were assessed via parent report on a diagnostic interview and via parent and teacher report on the ADHD Rating Scale. Results: A bifactor model with a general factor and specific factors of inattention and hyperactivity-impulsivity fit best when compared with one-, two-, and three-factor models, and a second-order factor model. Conclusions: A bifactor model of ADHD latent symptom structure is superior to existing factor models of ADHD. This finding is interpreted in relation to multi-component models of ADHD development, and clinical implications are discussed.
Descriptors: Attention Deficit Hyperactivity Disorder, Attention Deficit Disorders, Rating Scales, Symptoms (Individual Disorders), Conceptual Tempo, Control Groups, Children, Adolescents, Factor Analysis, Models, Parent Attitudes, Interviews, Teacher Attitudes
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Publication Type: Journal Articles; Reports - Research
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