In scoring the Panic Disorder Severity Scale, items are rated on a scale of 0 to 4. A composite score is established by averaging the scores of the seven items.
The Panic Disorder Severity Scale (PDSS) is a seven-item scale designed to assess overall severity of panic disorder symptoms. The PDSS-SR is the self-report version of the PDSS. Although there are multiple measures designed to assess various aspects of panic disorder such as anxiety sensitivity, agoraphobic avoidance, physical symptoms and frequency of panic attacks, the Panic Disorder Severity Scale is one of only a limited number of scales designed to assess these multiple aspects at once.