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Behav Cogn Psychother. 2013 Jul;41(4):500-4. doi: 10.1017/S1352465812000975. Epub 2012 Nov 21.

Psychometric properties of the Intolerance of Uncertainty Scale (IUS) in a Chinese-speaking population.

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1
Department of Psychology, Beijing Forestry University, Beijing, China. zhihuiyang2008@126.com

Abstract

BACKGROUND:

Studies have shown that the intolerance of uncertainty may play a key role in the aetiology and maintenance of worry and generalized anxiety disorder.

AIMS:

This study investigated the psychometric properties of the Chinese version of Intolerance of Uncertainty Scale (IUS), which had already been validated in French and English versions.

METHOD:

In a large college student sample (N = 940), the factor analysis and regression analyses were performed on the IUS.

RESULTS:

The IUS had excellent internal consistency (α = 0.90) and good test-retest reliability (r = 0.75) over a 5-week period. Factor analysis showed that the IUS had a four-factor solution. Finally, the regression analysis demonstrated that IU contributed significantly to worry, after controlling for demographic variables and levels of anxiety and depression.

CONCLUSIONS:

The Chinese version of the IUS was a sound scale for assessing IU and the intolerance of uncertainty was an important influencing factor on worry.

PMID:
23171631
DOI:
10.1017/S1352465812000975
[Indexed for MEDLINE]
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