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An Examination of Comorbidity Models...

Uliaszek, Amanda Ann.

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An Examination of Comorbidity Models and their Relationships to Personality.

Record Type:	Electronic resources : Monograph/item
Title/Author:	An Examination of Comorbidity Models and their Relationships to Personality./
Author:	Uliaszek, Amanda Ann.
Description:	128 p.
Notes:	Source: Dissertation Abstracts International, Volume: 73-04, Section: B, page: 2520.
Contained By:	Dissertation Abstracts International73-04B.
Subject:	Clinical psychology. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3489410
ISBN:	9781267086587

An Examination of Comorbidity Models and their Relationships to Personality.
Uliaszek, Amanda Ann.

An Examination of Comorbidity Models and their Relationships to Personality. - 128 p.

Source: Dissertation Abstracts International, Volume: 73-04, Section: B, page: 2520.

Thesis (Ph.D.)--Northwestern University, 2011.

The present study had three main objectives. The first was to compare a series of comorbidity models encompassing both Axis I and Axis II disorders. Second, the relationships between the selected comorbidity model and normal personality traits, namely those identified by the five factor model of personality (FFM), were examined. Third, the degree of overlap between personality traits and psychopathology was assessed. A total of 420 participants were drawn from three collegiate samples in the Chicagoland area. All participants completed a battery of self-report questionnaires assessing Axis I and Axis II psychopathology, as well as normal personality traits. A subsample (n = 111) had an informant complete a similar battery of questionnaires in reference to the participant. A final subsample (n = 100) completed interviews of Axis I and Axis II psychopathology. This reference variable design was implemented with the use of full information maximum likelihood estimation. First, four models illustrating comorbidity patterns across Axis I and Axis II were compared. The chosen model specified two higher-order psychopathology variables representing internalizing and externalizing factors. Next, the 30 FFM facets were correlated with the higher-order psychopathology variables. The internalizing factor was positively associated with all neuroticism facets and negatively associated with all extraversion facets. It also was negatively associated with many of the conscientiousness and agreeableness facets. The externalizing factor was negatively associated with all conscientiousness and agreeableness facets. It showed positive relationships with specific facets of neuroticism, extraversion, and openness to experience. Finally, set correlations were used to determine the degree of overlap between the personality variables and the psychopathology variables. Results supported complete overlap between the variables, although this should be interpreted with caution. The present study expands on previous research supporting the internalizing/externalizing model of comorbidity with the use of a multi-method design. The present study also highlighted the importance of examining the FFM at the facet level. Finally, results supporting complete overlap between personality and the higher-order psychopathology variables highlight the importance of personality in conceptualizing psychopathology structure and symptomatology.

ISBN: 9781267086587Subjects--Topical Terms:

524863
Clinical psychology.

An Examination of Comorbidity Models and their Relationships to Personality.
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245 1 3 $a An Examination of Comorbidity Models and their Relationships to Personality.
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500 $a Source: Dissertation Abstracts International, Volume: 73-04, Section: B, page: 2520.
500 $a Adviser: Richard E. Zinbarg.
502 $a Thesis (Ph.D.)--Northwestern University, 2011.
520 $a The present study had three main objectives. The first was to compare a series of comorbidity models encompassing both Axis I and Axis II disorders. Second, the relationships between the selected comorbidity model and normal personality traits, namely those identified by the five factor model of personality (FFM), were examined. Third, the degree of overlap between personality traits and psychopathology was assessed. A total of 420 participants were drawn from three collegiate samples in the Chicagoland area. All participants completed a battery of self-report questionnaires assessing Axis I and Axis II psychopathology, as well as normal personality traits. A subsample (n = 111) had an informant complete a similar battery of questionnaires in reference to the participant. A final subsample (n = 100) completed interviews of Axis I and Axis II psychopathology. This reference variable design was implemented with the use of full information maximum likelihood estimation. First, four models illustrating comorbidity patterns across Axis I and Axis II were compared. The chosen model specified two higher-order psychopathology variables representing internalizing and externalizing factors. Next, the 30 FFM facets were correlated with the higher-order psychopathology variables. The internalizing factor was positively associated with all neuroticism facets and negatively associated with all extraversion facets. It also was negatively associated with many of the conscientiousness and agreeableness facets. The externalizing factor was negatively associated with all conscientiousness and agreeableness facets. It showed positive relationships with specific facets of neuroticism, extraversion, and openness to experience. Finally, set correlations were used to determine the degree of overlap between the personality variables and the psychopathology variables. Results supported complete overlap between the variables, although this should be interpreted with caution. The present study expands on previous research supporting the internalizing/externalizing model of comorbidity with the use of a multi-method design. The present study also highlighted the importance of examining the FFM at the facet level. Finally, results supporting complete overlap between personality and the higher-order psychopathology variables highlight the importance of personality in conceptualizing psychopathology structure and symptomatology.
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