A comparison of the 27-item and 12-item intolerance of uncertainty scales


Autoria(s): Khawaja, Nigar G.; Yu, Lai Ngo Heidi
Data(s)

06/11/2010

Resumo

The 27-item Intolerance of Uncertainty Scale (IUS) has become one of the most frequently used measure of Intolerance of Uncertainty. More recently, an abridged, 12-item version of the IUS has been developed. The current research used clinical (n = 50) and non-clinical (n = 56) samples to examine and compare the psychometric properties of both versions of the IUS. The two scales showed good internal consistency at both the total and subscale level and had satisfactory test-retest reliability. Both versions were correlated with worry and trait anxiety and had satisfactory concurrent validity. Significant differences between the scores of the clinical and non-clinical sample supported discriminant validity. Predictive validity was also supported for the two scales. Total scores, in the case of the clinical sample, and a subscale, in the case of the non-clinical sample, significantly predicted pathological worry and trait anxiety. Overall, the clinicians and researchers can use either version of the IUS with confidence, due to their sound psychometric properties.

Formato

application/pdf

Identificador

http://eprints.qut.edu.au/40309/

Publicador

Taylor & Francis Ltd.

Relação

http://eprints.qut.edu.au/40309/1/c40309.pdf

DOI:10.1080/13284207.2010.502542

Khawaja, Nigar G. & Yu, Lai Ngo Heidi (2010) A comparison of the 27-item and 12-item intolerance of uncertainty scales. Clinical Psychologist, 14(3), pp. 97-106.

Direitos

Copyright 2010 The Australian Psychological Society Ltd

This is an electronic version of an article published in Clinical Psychologist, 14(3), pp.97-106. Clinical Psychologist is available online at informaworld.

Fonte

Faculty of Health; Institute of Health and Biomedical Innovation; School of Psychology & Counselling

Palavras-Chave #170106 Health Clinical and Counselling Psychology #170109 Personality Abilities and Assessment #Intolerance of Uncertainty #Anxiety and Worry
Tipo

Journal Article