1 National Center for Posttraumatic Stress Disorder, Department of Veterans Affairs, VA Palo Alto Health Care System, Menlo Park, CA, USA.
2 Palo Alto University, Palo Alto, CA, USA.
Assessment. 2018 Jan;25(1):84-98. doi: 10.1177/1073191116645904. Epub 2016 May 13.
The Dissociative Symptoms Scale (DSS) was developed to assess moderately severe levels of depersonalization, derealization, gaps in awareness or memory, and dissociative reexperiencing that would be relevant to a wide range of clinical populations. Structural analyses of data from four clinical and five nonclinical samples ( N = 1,600) yielded four factors that reflected the domains of interest and showed good fit with the data. Sample scores were consistent with expectations and showed very good internal consistency and temporal stability. Analyses showed consistent evidence of convergent and divergent validity, and posttrauma elevations in scores and in patients with posttraumatic stress disorder provided additional evidence of construct validity. Item response theory analyses indicated that the items assessed moderately severe dissociative experiences. Overall, the results provide support for the reliability and validity of DSS total and subscale scores in the populations studied. Further work is needed to evaluate the performance of the DSS relative to structured interview measures and in samples of patients with other psychological disorders.
分离症状量表（DSS）旨在评估与广泛临床人群相关的中度严重程度的人格解体、现实解体、意识或记忆空白以及分离性再体验。对来自四个临床和五个非临床样本（N=1600）的数据进行的结构分析得出了四个反映相关领域的因素，并且与数据拟合良好。样本得分与预期一致，表现出非常好的内部一致性和时间稳定性。分析表明，有一致的证据表明存在聚合和发散效度，创伤后分数升高和创伤后应激障碍患者的分数升高提供了对结构效度的额外证据。项目反应理论分析表明，这些项目评估了中度严重的分离体验。总的来说，这些结果支持在研究人群中使用 DSS 总分和分量表得分的可靠性和有效性。还需要进一步的工作来评估 DSS 相对于结构化访谈测量以及在其他心理障碍患者样本中的表现。
