cptsd-dso scale

The CPTSD-DSO Scale is a 38-item self-report tool developed to measure the Disturbance in Self-Organization (DSO) symptoms that define Complex PTSD (CPTSD) in the ICD-11 framework. This new research-based scale helps distinguish CPTSD from standard PTSD by focusing on the lasting impact of trauma on identity, emotional regulation, and relationships.

What it measures:
The DSO component reflects three interrelated areas:

Affective dysregulation – chronic difficulty managing emotions, alternating between numbing and overwhelm.

Negative self-concept – persistent shame, guilt, or beliefs of worthlessness and failure.

Disturbed relationships – fear of closeness, mistrust, and feeling detached or different from others.

About the research:
Validated in a large online study of more than 2,800 participants, the CPTSD-DSO Scale showed strong internal consistency and clear separation between individuals meeting criteria for CPTSD versus PTSD. The study confirmed that DSO symptoms form a distinct but related dimension of trauma response — emphasizing identity and relational harm, not only fear-based reactions.

Why it matters:
Traditional PTSD measures often miss the self-identity and interpersonal struggles that follow prolonged or developmental trauma. The CPTSD-DSO Scale provides a reliable way to assess those deeper disruptions, supporting more precise diagnosis, tailored treatment, and a clearer understanding of how complex trauma shapes the self.

Ref: https://www.sciencedirect.com/science/article/abs/pii/S016503272500326X?dgcid=coauthor