Intolerance of Uncertainty Scale (IUS-27 / IUS-12).

IUS / IUS-12

What it measures

Intolerance of uncertainty - dispositional negative beliefs about uncertainty and its consequences; a transdiagnostic vulnerability central to worry/GAD, with prospective (desire for predictability) and inhibitory (paralysis in the face of uncertainty) facets

Length and format

27 (original Freeston); 12 (IUS-12 short form, recommended). 5-point (1 not at all to 5 entirely characteristic of me); IUS-12 total 12-60; Prospective subscale 7-35, Inhibitory subscale 5-25 (self-report questionnaire)

Language versions

Many languages incl. FR (original), ES, DE, IT, NL, ZH, PT, TR, FA and others

Normative data

Normative data for this instrument is held in our reference library. The per-population breakdown is not published here.

Licence

copyrighted - commercial

This instrument is not self-serve. Obtaining it means going to the publisher or the author. We hold no direct link for it; the reference below is the citation to search from.

Licence classification is a research judgement by the catalogue’s authors, not legal advice, and it can be out of date. Confirm terms with the copyright holder or publisher before using an instrument, especially for commercial use.

Reference

Carleton, R. N., Norton, M. A. P. J., & Asmundson, G. J. G. (2007). Fearing the unknown: a short version of the Intolerance of Uncertainty Scale. Journal of Anxiety Disorders, 21(1), 105-117.