What PSS-10 measures
PSS-10 measures perceived stress: how unpredictable, uncontrollable, and overloaded a person found life during the last month. It captures an appraisal of circumstances rather than a count of objectively stressful events.
How scoring works
Each answer is assigned 0 to 4 points according to the instrument's scoring key, then all ten values are added. The possible total ranges from 0 to 40.