%0 Journal Article
%T Bifactor Models of Attention Deficit/Hyperactivity Symptomatology in Adolescents:  Criterion Validity and Implications for Clinical Practice
%A Gregory A. Fabiano
%A Karen L. Morris
%A Michael T. Willoughby
%A Nicole K. Schatz
%A Rebecca K. Vujnovic
%J Assessment
%@ 1552-3489
%D 2019
%R 10.1177/1073191117698755
%X This study evaluated the fit and criterion validity of a bifactor model for 18 DSM-IV attention deficit/hyperactivity disorder (ADHD) symptoms, along with nine supplementary symptoms that represented the manifestation of inattention and hyperactivity¨Cimpulsivity in adolescence and early adulthood. Participants included N = 172 adolescents who were diagnosed with combined type ADHD and who were enrolled in a treatment study. A bifactor model provided reasonably good fit to combined parent- and teacher-reported DSM symptoms and supplemental items at baseline prior to treatment. Across models, the general factor was characterized by high reliability (¦Ø = .93, .95), while specific inattentive and hyperactive¨Cimpulsive factors were characterized by poor reliability (¦Ø = .30-.50). With respect to criterion validity, the general ADHD and specific inattentive factors were uniquely associated with home and school impairment (R2 = .13-.29) but not adolescent risk-tasking behavior. Results are discussed with respect to the ways in which bifactor models of ADHD inform the diagnostic criteria for ADHD
%K attention deficit/hyperactivity disorder
%K bifactor confirmatory factor analysis
%K adolescent
%U https://journals.sagepub.com/doi/full/10.1177/1073191117698755