The Intolerance of Uncertainty Scale (IUS) assesses emotional, cognitive, and behavioral reactions to ambiguous situations, implications of being uncertain, and attempts to control the future.
The IUS has 27 items- none reversed scored.
The IUS may be used as a unifactorial or a bifactorial assessment tool.
To score the IUS as a unifactorial tool, add up the responses for each of the items.
As a bifactorial tool, the IUS is used to assess the following two factors:
Factor 1: Uncertainty has negative behavioural and self-referent implications
Factor 2: Uncertainty is unfair and spoils everything
To score Factor 1, add up the responses for items 1, 2, 3, 9, 12, 13, 14, 15, 16, 17, 20, 22, 23, 24, and 25
To score Factor 2, add up the responses for items 4, 5, 6, 7, 8, 10, 11, 18, 19, 21, 26, and 27
We do not have copyright authority over these measures and cannot grant permission for use.
Questionnaires and other measures are provided here solely as a courtesy to accompany our scoring code. Please contact the author of the questionnaire for use permissions.
Use of scoring code is granted under CC BY-SA 4.0 permissions.