Date of Degree


Document Type


Degree Name





Denise Hien

Committee Members

Steven Tuber

Elliot L. Jurist

William Gottdiener

Edward Nunes

Subject Categories



Both posttraumatic stress disorder (PTSD) and substance use disorders (SUD) are ongoing public health crises. Dissociative experiences are considered core processes within both of these conditions (van der Kolk & van der Hart, 1989; Briere & Runtz, 1987; Schafer et al., 2010). Dissociation, which involves the compartmentalization of psychic experience, also exerts a significant influence over psychotherapies that aim to address both PTSD and SUD (Davidson & Foa, 1991; Spitzer, Barnow, Freyberger, & Grabe, 2007). However, dissociation is a wide concept that encompasses several perceptual, cognitive, affective, memory, and self-state processes (Bernstein & Putnam, 1986; Briere, Weathers, & Runtz, 2005). Through separate self-reports and projective measures that operationalize dissociation in distinct ways, this study investigated the quality and intensity of dissociative experiences in a sample of treatment-seeking individuals with comorbid PTSD and SUD. Additionally, this dissertation explored whether these measures of dissociation had significant relationships with treatment outcome.

Results: Cross-sectional correlation analysis identified convergence between certain measures of dissociation, but not others. Within hierarchical regression analysis, specific subscales of dissociation demonstrated discrepant relationships with response-to-treatment variables. Altogether, this study further evidenced the multidimensional nature of dissociative processes and, subsequently, the value of multi-method assessment. In addition, separate types of dissociation appeared to differentially influence treatment, indicating a pathway through which to improve customization of treatment planning.


Digital reproduction from the UMI microform.

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Psychology Commons



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