Total number of questions
Scoring and interpretation
Answers are scored on a 4-point Likert scale from 0 to 3 with 0 for "Did not apply to me at all" and 3 for "Applied to me very much, or most of the time." Scores are summed and total scores range from 0 to 126. Higher scores are associated with more severe symptoms. In addition, there are 3 subscales which are also summed.