Abstract
Intolerance of uncertainty (IU) is implicated in the development and maintenance of generalized anxiety disorder (GAD). Although an efficacious cognitive-behavioral treatment (CBT) targeting IU and associated factors has been established, approximately 20–30% of participants do not achieve full remission by posttreatment. IU remains elevated in these individuals. In addition, GAD treatments need greater parsimony and efficiency. To that end, we developed a novel, focused CBT protocol exclusively targeting IU via behavioral experiments. Treatment consists of three modules applied over 12 sessions: (a) psychoeducation and uncertainty awareness training, (b) behavioral experiments targeting IU, and (c) relapse prevention. The present article describes each treatment component, as well as additional considerations for therapists. We conducted a preliminary investigation of efficacy with seven (N = 7) participants with a primary diagnosis of GAD. Results indicated substantial decreases in GAD symptoms, general psychopathology, and IU by posttreatment that were generally maintained at 6-month follow-up. Six of seven participants demonstrated moderate to high end-state functioning at posttreatment and 6-month follow-up. Research and clinical implications are discussed.
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