Thesis (Ph.D.)--York University, 2007. Graduate Programme in Psychology. / Typescript. Includes bibliographical references (leaves 99-121). Also available on the Internet. MODE OF ACCESS via web browser by entering the following URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pqdiss&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft_dat=xri:pqdiss:NR39033

Children and parents suffer from anxiety at high rates, but little is known regarding the role of family accommodation in the relationship between parent anxiety and child anxiety. Family accommodation is the process by which families accommodate patient symptoms by providing reassurance or by modifying family routines to avoid anxiety producing situations, which is in direct opposition to clinical therapeutics, like Cognitive Behavioral Therapy (CBT), which focus on confronting rather than accommodating symptoms. It is important to identify family variables that are relevant to understanding the role of the parent in their child's anxiety, and family accommodation is promising because it has been implicated in impairment, symptom severity, and poor treatment outcomes in children and adults with obsessive-compulsive disorder. However, less is known about family accommodation and anxiety. Therefore, the purpose of the present study was to explore the possibility that family accommodation might mediate the relationship between parent anxiety and child anxiety by using survey methodology to acquire data from 85 parents via community and clinical sampling. Measures included "The Family Accommodation Scale Anxiety," "The State Trait Anxiety Inventory for Adults," and "The Screen for Child Anxiety Related Emotional Disorders." Multiple regression analyses revealed that family accommodation fully mediated the relationship between parent anxiety and child anxiety, as evidenced by a statistically significant Sobel test of mediation and by a reduction in the parent anxiety child anxiety relationship from significant to non-significant. This study fills an important gap in the literature by providing empirical evidence that family accommodation plays an important role in mediating the relationship between parent anxiety and child anxiety. Implications include the potential for development of effective interventions for child anxiety by including focused treatment components designed to reduce and eliminate family accommodation. / text

Anxiety sensitivity is a cognitive, individual difference variable that is differentiated by an individual's fear of anxiety sensations and centred on the belief that such sensations result in harmful consequences. In order to test anxiety sensitivity, Reiss, Peterson, Gursky, and McNally (1986) developed the Anxiety Sensitivity Index (ASI). However, one contentious issue in the area concerns the factor analytic structure of anxiety sensitivity and this has important consequences for the construct. Numerous investigations have been conducted using the ASI, and the results have varied appreciably with some researchers arguing for a unidimensional construct. However the general consensus now is that anxiety sensitivity is multidimensional. It has been argued that the repeated attempts to clarify the dimensionality of anxiety sensitivity, using the 16-item ASI, is problematic because the scale was never designed to measure a multidimensional construct in the first instance. Thus, the objective of the dissertation was to critically examine the anxiety sensitivity construct by using an expanded, multidimensional measure of anxiety sensitivity referred to as the Anxiety Sensitivity Index - Revised ([ASI-R] Taylor & Cox, 1998) and establish the psychometric properties of the measure by conducting a series of empirical investigations to assess the clinical utility of the measure. A series of three empirical investigations are presented in the current dissertation. The first investigation aimed to critically examine the factor structure and psychometric properties of the ASI-R. Confirmatory factor analysis using a clinical sample of adults revealed that the ASI-R could be improved substantially through the removal of 15 problematic items in order to account for the most robust dimensions of anxiety sensitivity. The modified measure was re-named the 21-item Anxiety Sensitivity Index (21-item ASI) and re-analysed with a large sample of nonclinical adults, revealing configural and metric invariance across groups. Further, comparisons with other alternative models that also include comparisons with previous published ASI models indicated the 21-item ASI to be the best fitting model for both groups. There was also evidence of internal consistency, test-retest reliability, and construct validity for both samples. The aim of the second investigation was to critically examine differences between and within various anxiety classifications, a mood disorder classification, and a nonclinical control sample, with respect to both general and specific dimensions of anxiety sensitivity as identified by the 21-item ASI. In most instances, the results revealed that the differences between and within the diagnostic groups were consistent with theoretical expectations. Finally, the third investigation aimed to examine differences within each diagnostic category before and after cognitive behavioural therapy in order to provide a further test of validity for the revised 21-item ASI. The results revealed significant differences within all but one diagnostic group on the pre and post-treatment scores, using the global and specific dimensions of the 21-item ASI. The strengths, theoretical contribution, limitations, and directions for future research are discussed. It is concluded that the overall findings relating to the series of empirical investigations presented in the current dissertation make a significant and valid theoretical contribution to the field of anxiety sensitivity in particular, and anxiety research in general, by enhancing our understanding of anxiety sensitivity and how the 21-item ASI can be used to improve therapeutic interventions in clinical practice.

Dissociation may be broadly described as a subjective experience in which information from the individual's internal or external environment is not appropriately integrated into conscious awareness, memory or identity. A number of studies have found an association between dissociative experience and anxious arousal, and in particular, between dissociation and trauma. Recent reviews suggest the existence of an unspecified mediating variable that accounts for these associations. The present study compared dissociative experiences reported by a community sample (N = 74) and a sample of individuals with a range of anxiety disorders (N = 20). The potential influence of anxiety sensitivity was a particular focus. Participants completed a battery of measures assessing dissociative experience, anxious arousal, social anxiety, generalised anxiety, panic and agoraphobia, traumatic experience and posttraumatic stress in addition to measures of anxiety sensitivity and substance use. Participants in the anxiety group reported a greater variety and frequency of dissociative experiences, particularly of experiences considered to be pathological in nature. Elevated dissociation scores were associated with somatic symptoms of anxiety, social anxiety, generalised anxiety, agoraphobia and posttraumatic stress. No association between trauma exposure and dissociation was evident; however, trauma intensity was associated with dissociation in the anxiety group. Symptoms of depersonalisation / derealisation and absorption were most strongly associated with increased anxiety. Anxiety Sensitivity accounted for more of the variance in dissociation scores than did measures of expressed anxiety. These results suggest that anxiety sensitivity may account for the relationship between trauma anxiety and dissociation. Therapeutic intervention directed at anxiety sensitivity, particularly fear of cognitive discontrol, may prove helpful in treating dissociative detachment.

Thesis (Ph. D.)--University of Toronto, 2005. / Includes bibliographical references (leaves 137-156).

Thesis (Ph. D.)--University of Virginia, 1998. / Includes bibliographical references (p. 122-133). Also available online through Digital Dissertations.

Thesis (M.S.)--University of Alaska Anchorage, 1998. / eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.

Thesis (M.S.)--University of Alaska Anchorage, 1998. / eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.

Thesis (M.A. (Psychology))--Rhodes University, 2003. / Submitted in partial fulfilment for requirements for the degree of Master of Arts (Research Psychology) in the Department of Psychology.

Thesis (doctoral)--La Salle University, 2004. / ProQuest dissertations and theses ; AAT 3139151. Includes bibliographical references (leaves 30-36).