The proposed study will allow the current DSM-IV categorical model of personality disorders to be compared directly to the Five-Factor model (FFM) of personality, on the basis of temporal stability within a clinical setting, convergent and discriminant validity, and clinical utility. The FFM is the most heavily researched of the dimensional models that have been proposed as an alternative for the current DSM-IV system. The DSM- IV and FFM ratings will be assessed in a group of 75 self-referred individuals who are currently receiving outpatient psychotherapy for a personality disorder using the four primary methods of assessment used in clinical practice: unstructured clinical interview by the client's therapist, semi-structured interview by a trained researcher, self-report inventory and informant report. Additionally, the same participants will be assessed again after six months to examine the temporal stability of each model. Finally, the therapists who are treating these clients and providing the unstructured clinical interview ratings will also provide feedback on the clinical utility of each model. It is hoped that this research will help to better conceptualize personality difficulties and ultimately a more coherent and useful diagnostic system.

Agency
National Institute of Health (NIH)
Institute
National Institute of Mental Health (NIMH)
Type
Predoctoral Individual National Research Service Award (F31)
Project #
1F31MH074245-01A1
Application #
7057507
Study Section
Special Emphasis Panel (ZRG1-F12B (20))
Program Officer
Wynne, Debra K
Project Start
2005-12-17
Project End
2008-12-16
Budget Start
2005-12-17
Budget End
2006-12-16
Support Year
1
Fiscal Year
2005
Total Cost
$33,943
Indirect Cost
Name
University of Kentucky
Department
Psychology
Type
Schools of Arts and Sciences
DUNS #
939017877
City
Lexington
State
KY
Country
United States
Zip Code
40506
Samuel, Douglas B; Mullins-Sweatt, Stephanie N; Widiger, Thomas A (2013) An investigation of the factor structure and convergent and discriminant validity of the five-factor model rating form. Assessment 20:24-35
Samuel, Douglas B; Widiger, Thomas A (2011) Conscientiousness and obsessive-compulsive personality disorder. Personal Disord 2:161-74
Samuel, Douglas B; Widiger, Thomas A (2011) Clinicians' Use of Personality Disorder Models within a Particular Treatment Setting: A Longitudinal Comparison of Temporal Consistency and Clinical Utility. Personal Ment Health 5:
Samuel, Douglas B; Edmundson, Maryanne; Widiger, Thomas A (2011) Five factor model prototype matching scores: convergence within alternative methods. J Pers Disord 25:571-85
Samuel, Douglas B; Widiger, Thomas W (2010) Comparing personality disorder models: cross-method assessment of the FFM and DSM-IV-TR. J Pers Disord 24:721-45
Samuel, Douglas B; Simms, Leonard J; Clark, Lee Anna et al. (2010) An item response theory integration of normal and abnormal personality scales. Personal Disord 1:5-21
Samuel, Douglas B; Widiger, Thomas A (2010) A comparison of obsessive-compulsive personality disorder scales. J Pers Assess 92:232-40
Samuel, Douglas B; Widiger, Thomas A (2008) A meta-analytic review of the relationships between the five-factor model and DSM-IV-TR personality disorders: a facet level analysis. Clin Psychol Rev 28:1326-42