The PUM is a 14 item Likert-type scale to measure one’s tendency to act rashly in response to a positive mood. Items are assessed from 1 (agree strongly) to 4 (disagree strongly). Factor analyses confirmed the unidimensionality of the scale [25]. The measurement of positive urgency is stable across assessment method and time, and the trait correlates cross-sectionally associated with engagement in risky behaviors while in a positive mood [20, 25]. In the present sample, the coefficient alpha was 0.96. Stability of scores over the 8 month period was 0.46. Sample items include When I am very happy, I sometimes do things that can have bad consequences and Others would say I make bad choices when I am in a good mood.
