Psychometric properties of the Dissociative Symptoms Scale (DSS) in Italian outpatients and community adults

This study investigated the psychometric properties of the Dissociative Symptoms Scale (DSS) among Italian adults from outpatient and community samples. The DSS is a self-report measure of clinically relevant dissociation in adults. An Italian translation of the DSS was administered with measures of lifetime traumatic experiences, psychoform dissociation, and somatoform dissociation to 175 psychiatric outpatients and 423 individuals from the community. The DSS scores for outpatient and community adults were significantly different and showed good internal reliability, good convergent and construct validity, and a four-factor structure (depersonalization and derealization, gaps in awareness and memory, sensory misperceptions, and cognitive and behavioral reexperiencing) that was consistent with findings from previous research. Therefore, our results support previous research showing that the DSS can be used as a screening measure to assess clinically relevant dissociative experiences.