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    Trait versus situation-specific intolerance of uncertainty in a clinical sample with anxiety and depressive disorders

    Access Status
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    Authors
    Mahoney, A.
    McEvoy, Peter
    Date
    2012
    Type
    Journal Article
    
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    Citation
    Mahoney, A. and McEvoy, P. 2012. Trait versus situation-specific intolerance of uncertainty in a clinical sample with anxiety and depressive disorders. Cognitive Behaviour Therapy. 41: pp. 26-39.
    Source Title
    Cognitive Behaviour Therapy
    ISSN
    16506073
    URI
    http://hdl.handle.net/20.500.11937/4028
    Collection
    • Curtin Research Publications
    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 ¼ 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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      The Intolerance of UncertaintyModel was initially developed as an explanation for worry within the context of generalized anxiety disorder. However, recent research has identified intolerance of uncertainty (IU) as a ...
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      Uncertainty is central to anxiety-related pathology and intolerance of uncertainty (IU) appears to be a transdiagnostic risk and maintaining factor. The aim of the present study was to evaluate a hierarchical model to ...
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