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dc.contributor.advisorRiccio, Cynthia A.en_US
dc.creatorLee, Dong Hyungen_US
dc.date.accessioned2005-11-01T15:52:18Z
dc.date.available2005-11-01T15:52:18Z
dc.date.created2004-08en_US
dc.date.issued2005-11-01
dc.identifier.urihttp://hdl.handle.net/1969.1/2801
dc.description.abstractCurrent theoretical models of ADHD (i.e., Disinhibition Model: Barkley, 1997; Working Memory Model: Rapport et al., 2001) conceptualize ADHD as the disorder of executive function (EF) with some variation in their emphases on particular components of the broadly-defined EF (e.g., working memory vs. inhibition) and in their postulated relationships with ADHD symptoms. Although these models provide systematic accounts of the manifestation of ADHD, they have not been extensively tested from an empirical standpoint. Moreover, despite the fact that ADHD is highly comorbid with other additional conditions such as learning and behavioral problems and EF deficits are found in individuals with these conditions as well as in those with ADHD, current EF models have not specified the developmental relationship between ADHD and its comorbid conditions. This study was: (1) to examine the extent to which two current models of ADHD are supported in a sample of 102 adults; (2) to present an ??integrated?? model by combining two current models of ADHD and linking them to recent research findings on two common comorbid conditions with ADHD (i.e., reading difficulty and substance abuse); and (3) to test and revise such an integrated model in the light of data using a latent variable analysis. Major findings provided a strong support for the Working Memory Model with a lesser degree of support for the Disinhibition Model. Preliminary evidence of working memory as the primary deficit in ADHD was also obtained in the present sample. Finally, the integrated EF model and its revised model (final model) demonstrated a very good fit to the data. These findings suggest that the integrated model provides a unified account of how EF deficits contribute to the manifestation of ADHD symptoms and comorbid conditions with ADHD. Given some limitations (e.g., sample size and scope) of the present study, current findings need to be replicated.en_US
dc.format.extent548293 bytes
dc.format.mediumelectronicen_US
dc.format.mimetypeapplication/pdf
dc.language.isoen_USen_US
dc.publisherTexas A&M Universityen_US
dc.subjectADHDen_US
dc.subjectexecutive functionen_US
dc.subjectworking memoryen_US
dc.subjectinhibitionen_US
dc.subjectreading difficultyen_US
dc.subjectsubstance abuseen_US
dc.titleTesting executive function models of ADHD and its comorbid conditions: A latent variable approachen_US
dc.typeBooken
dc.typeThesisen
thesis.degree.departmentEducational Psychologyen_US
thesis.degree.disciplineSchool Psychologyen_US
thesis.degree.grantorTexas A&M Universityen_US
thesis.degree.nameDoctor of Philosophyen_US
thesis.degree.levelDoctoralen_US
dc.contributor.committeeMemberDavidson, Emily S.en_US
dc.contributor.committeeMemberAsh, Michael J.en_US
dc.contributor.committeeMemberWillson, Victor L.en_US
dc.contributor.committeeMemberRae, William A.en_US
dc.type.genreElectronic Dissertationen_US
dc.type.materialtexten_US
dc.format.digitalOriginborn digitalen_US


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