The Distress Tolerance Scale (previously Distress Tolerance Questionnaire, DTQ) is a 15 item self-report measure of emotional distress tolerance.
Individuals select on a 1-5 likert scale
(Strongly Disagree, Mildly Disagree, Feel Neutral, Mildly Agree, Strongly Agree) about each of the 16 statements about distress.
There is one total scale, and only item 6 is reverse coded.
Simons, J. S., & Gaher, R. M. (2005). The Distress Tolerance Scale: Development and validation of a self-report measure. Motivation and Emotion, 29(2), 83-102.