PTSD Symptom Scale – Self-Report Version (PSS-SR) is a 17-item self-reported questionnaire to assess symptoms of posttraumatic stress disorder.[1] Each of the 17 items describe PTSD symptoms which respondents rate in terms of their frequency or severity using a Likert-type scale ranging from 0 (not at all or only one time) to 3 (almost always or five or more times per week). Ratings on items are summed to create three subscales – re-experiencing, avoidance coping, and psychological hyperarousal (such as "jumpiness") – as well as a total score (that ranges from 0 to 51). All items of the PSS-SR should be answered, and assessment is done by total score. The total score higher than 13 indicates on likelihood of PTSD.
^Foa, Edna B.; Cashman, Laurie; Jaycox, Lisa; Perry, Keven (December 1997). "The validation of a self-report measure of posttraumatic stress disorder: the Posttraumatic Diagnostic Scale". Psychological Assessment. 9 (4): 445–451. doi:10.1037/1040-3590.9.4.445.
Further reading
Foa, Edna B.; Riggs, David S.; Dancu, Constance V.; Rothbaum, Barbara O. (October 1993). "Reliability and validity of a brief instrument for assessing post-traumatic stress disorder". Journal of Traumatic Stress. 6 (4): 459–473. doi:10.1002/jts.2490060405.
