Self-reported intolerance of uncertainty and behavioural decisions

Abstract Intolerance of Uncertainty (IU) appears to be a robust transdiagnostic risk factor related to anxiety and depression. Most transdiagnostic IU research has used the self-report Intolerance of Uncertainty Scale-Short Form; however, there is comparatively little research exploring presumed behavioral correlates of IU. The current study was designed to assess relationships between self-reported IU and decisions in uncertainty-based behavioral tasks (specifically, the Wisconsin Card Sorting Task, the Risky Gains Task, and the Modified Iowa Gambling Task). Participants comprised compensated community members ( n  = 108; 69% women) and undergraduates ( n  = 98; 78% women). Community member compensation was not contingent on performance, but undergraduate compensation was partially contingent on performance. Results replicated prior research, with both samples producing small ( r  = .19) to moderate ( r  = −.29) correlations ( p s