Enhancing the ecological validity of the Beads Task as a behavioral measure of intolerance of uncertainty.

•Aimed to enhance ecological validity of the Beads Task as an in vivo measure of IU.•Incorrect Beads Task decisions were paired with the Cold Pressor Task (CPT).•Beads Task importance and distress ratings were elevated relative to previous work.•CPT pain tolerance was inversely associated with later Beads Task distress.•In vivo Beads Task distress was uniquely correlated with self-report inhibitory IU