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ERIC Number: EJ842443
Record Type: Journal
Publication Date: 2009-Jun
Pages: 11
Abstractor: As Provided
Reference Count: 63
ISSN: ISSN-1040-3590
Defining Distinct Negative Beliefs about Uncertainty: Validating the Factor Structure of the Intolerance of Uncertainty Scale
Sexton, Kathryn A.; Dugas, Michel J.
Psychological Assessment, v21 n2 p176-186 Jun 2009
This study examined the factor structure of the English version of the Intolerance of Uncertainty Scale (IUS; French version: M. H. Freeston, J. Rheaume, H. Letarte, M. J. Dugas, & R. Ladouceur, 1994; English version: K. Buhr & M. J. Dugas, 2002) using a substantially larger sample than has been used in previous studies. Nonclinical undergraduate students and adults from the community (M age = 23.74 years, SD = 6.36; 73.0% female and 27.0% male) who participated in 16 studies in the Anxiety Disorders Laboratory at Concordia University in Montreal, Canada were randomly assigned to 2 datasets. Exploratory factor analysis with the 1st sample (n = 1,230) identified 2 factors: the beliefs that "uncertainty has negative behavioral and self-referent implications" and that "uncertainty is unfair and spoils everything." This 2-factor structure provided a good fit to the data (Bentler-Bonett normed fit index = 0.96, comparative fit index = 0.97, standardized root-mean residual = 0.05, root-mean-square error of approximation = 0.07) upon confirmatory factor analysis with the 2nd sample (n = 1,221). Both factors showed similarly high correlations with pathological worry, and Factor 1 showed stronger correlations with generalized anxiety disorder analogue status, trait anxiety, somatic anxiety, and depressive symptomatology. (Contains 5 tables.)
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers - Location: Canada (Montreal)
Identifiers - Assessments and Surveys: Beck Anxiety Inventory; Center for Epidemiologic Studies Depression Scale; State Trait Anxiety Inventory