This thesis tests the hypothesis proposed by Liemkuhler (1994) relating to the development of a cluster of personality styles among ADHD adolescents. Liemkuhler suggests that it is a neurobiological dysfunction, through its interaction with psychodynamic and cognitive processes that predisposes the ADHD adolescent to the development of certain personality styles. An absence of appropriate intervention and support increases the risk of these personality styles developing into clinical syndromes. To determine whether differences in personality styles do exist between ADHD adolescents and adolescents without ADHD, the NED Five Factor Inventory (NEDFFI) was group administered to a sample of 25 adolescents who were previously diagnosed as having ADHD (referred to as the ' research group') and 25 controls (referred to as the ' control group') who were matched for age and educational level. Five testable hypotheses were formulated for each of the five personality scales. A comparison of each of the five scales between the research group and the control group yielded no significant result to support Liemkuhler's hypothesis. However, a comparison of the five scales within each group (either the research group or the control group) produced several significant differences. Significant correlations were also found between scales for each group. On the basis of these results it is suggested that specific differences in the facets (traits) that are measured by each of the five personality scales may exist for each group, as opposed to overall group differences in personality styles. It is further proposed that the facets that are tapped may be explained on the basis of assumed differences in the neurobiological and cognitive functioning of both groups. It is tentatively concluded that the results may provide partial support for Liemkuhler's hypothesis. However, it is acknowledged that the complexity of Liemkulher's argument warrants further and more detailed research. / Thesis (M.Sc.)-University of Natal, Pietermaritzburg, 2003.

Ward's method of cluster analysis was utilized to partition the clinical profiles of 74 students completed at a midwestern university's school psychology training clinic. The Conners' Continuous Performance Test and the Parent Rating Scale of the Behavioral Assessment System for Children provided the clustering variables. The neuropsychological literature predicted three groups; ADHD - Primarily Inattentive Type, ADHD - Primarily Hyperactive-Impulsive Type, and ADHD - Mixed Type based on errors of omission and commission on measures of vigilance, along with parental rankings on internalized and externalized behavior.Cluster Analysis 1 (N = 74) identified three clusters but failed to support the initial hypothesis. Clusters differentiated between clinical, at risk, and average range behavioral rankings, especially on those behaviors that are immediately noticeable and conflict with structured situations.Cluster Analysis 2 (n = 26) was limited to those with initial referral questions of an attentional disorder. All procedures of analysis 1 were repeated with this subset. Three clusters supported the inattentive and hyperactive profiles predicted. / Department of Educational Psychology

Thesis (M.I.T.)--Evergreen State College, 2007. / Title from title screen viewed (6/19/2008). Includes bibliographical references (leaves 93-99).

Thesis (Honors)--Liberty University Honors Program, 2007. / Includes bibliographical references. Also available through Liberty University's Digital Commons.

Thesis (Ph. D.)--Florida State University, 2005. / Advisor: Dr. Jon S. Bailey, Florida State University, College of Arts and Sciences, Dept. of Psychology. Title and description from dissertation home page (viewed June 16, 2005). Document formatted into pages; contains ix, 85 pages. Includes bibliographical references.

Thesis (Ph. D.)--University of Washington, 2004. / Vita. Includes bibliographical references (leaves 92-103).

Thesis, PlanB (M.S.)--University of Wisconsin--Stout, 1999. / Includes bibliographical references.

Thesis (M.A.)--The University of North Carolina at Greensboro, 2008. / Advisor: Julie Brown; submitted to the Dept. of Sociology. Title from PDF t.p. (viewed May 28, 2009). Includes bibliographical references (p. 81-84).

Thesis (Ph. D.)--Lehigh University, 1997. / Includes vita. Includes bibliographical references (leaves 142-153).

Thesis (Psy. D.)--Wheaton College Graduate School, Wheaton, Ill., 2001. / Abstract. Includes bibliographical references (leaves 48-53).