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In clinical assessment, the Somatic Symptom Disorder B-Criterion Scale (SSD-12) is a brief self-report measure used to evaluate the cognitive, affective, and behavioral responses associated with distressing somatic symptoms. It is intended to characterize the degree of symptom-related preoccupation, emotional burden, and maladaptive coping in a structured format.
The instrument includes 12 items and typically requires about 3 minutes to complete. Items ask respondents to rate how often they experience common reactions to bodily sensations (e.g., symptom-related worry, heightened attention to symptoms, and efforts to control or avoid sensations), supporting a focused appraisal of psychological features relevant to somatic symptom presentations. Developed by Francis J. Keefe, the Somatic Symptom Disorder B-Criterion Scale (SSD-12) is used to inform case formulation and to support clinical decision-making alongside other assessment data rather than as a stand-alone diagnostic tool.