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Date of Award

7-26-2004

Degree Type

Dissertation (On-Campus Access Only)

Degree Name

Doctor of Psychology (PsyD)

Committee Chair

Ricks Warren

Second Advisor

Jay Thomas

Third Advisor

Michel Hersen

Abstract

The current study investigated predictors of outcome in the treatment of panic disorder using an empirically supported treatment for panic disorder administered in a private practice setting. Participants were 100 clients with a primary diagnosis of panic disorder with or without agoraphobia who received Panic Control Treatment. Participants with a longer duration of illness or greater agoraphobia were significantly less likely to achieve high endstate status at posttreatment. Effect sizes were in the medium range for agoraphobic avoidance and in the small to medium range for duration of illness. However, these predictors were not significantly related to longterm response to treatment, nor were any other pretreatment variables. Relative to participants meeting high endstate status at followup, participants who did not meet this classification had significantly greater posttreatment agoraphobia and anxiety sensitivity scores across multiple measures of agoraphobia and anxiety sensitivity. Effect sizes were in the medium to medium-large range. As with pretreatment predictors, these relationships did not hold up with the passage of additional time. In addition, PCT clients' responses to questions about the course of panic disorder since treatment completion as well as responses to questions regarding their attitudes and opinions about the treatment process and treatment outcome were assessed.

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