Article2011

Trait Versus Situation-Specific Intolerance of Uncertainty in a Clinical Sample with Anxiety and Depressive Disorders

103 citations0/0 files storedCognitive Behaviour Therapy

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Anxiety, Depression, Psychometrics, Treatment, Cognitive Processes Child and Adolescent Psychosocial and Emotional Development Mental Health Research Topics

Abstract

Intolerance of uncertainty (IU) has been most heavily implicated in the development and maintenance of generalised anxiety disorder; however, recent research has supported the transdiagnostic conceptualisation of IU by demonstrating that IU contributes to a broad array of symptoms associated with multiple anxiety and depressive disorders. The aim of this study was to examine IU firstly as a trait variable and secondly in reference to a regularly occurring, diagnostically relevant situation in a large clinical sample (N = 218). A measure of situation-specific IU (the Intolerance of Uncertainty Scale-Situation-Specific Version; IUS-SS) is presented. The IUS-SS was found to have a unitary factor structure and high internal consistency. Participants reported significantly more situation-specific IU compared to trait IU. Discriminant validity was indicated by lack of significant relationships with measures of extraversion and alcohol use. Supporting the convergent validity and transdiagnostic nature of the scale, the IUS-SS was positively associated with neuroticism and symptoms of generalised anxiety disorder and social phobia, and explained unique variance in symptoms of depression and panic disorder above and beyond trait IU. Theoretical and clinical implications are discussed.

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References

1996Beck Depression Inventory–II 1990Development and validation of the penn state worry questionnaire 2000SPSS and SAS programs for determining the number of components using parallel analysis and Velicer’s MAP test 1995Factor analysis in the development and refinement of clinical assessment instruments.1998Development and validation of measures of social phobia scrutiny fear and social interaction anxiety11Editor’s note: This article was written before the development of some contemporary measures of social phobia, such as the Social Phobia and Anxiety Inventory (Turner et al., 1989). We have invited this article for publication because of the growing interest in the scales described therein. S.T.2006Fearing the unknown: A short version of the Intolerance of Uncertainty Scale 1998A psychometric evaluation of the Beck Depression Inventory-II.1998Structural relationships among dimensions of the DSM-IV anxiety and mood disorders and dimensions of negative affect, positive affect, and autonomic arousal.

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