MDI
Multiscale Dissociation Inventory (MDI)
The Multiscale Dissociation Inventory (MDI) is a standardized self-report questionnaire designed to measure several dimensions of dissociative symptoms, particularly in contexts of psychological trauma, complex posttraumatic stress and dissociative psychopathology. Used in clinical practice and research, it helps the psychologist identify the intensity and profile of current dissociative manifestations, including disengagement, depersonalization, derealization, emotional constriction, memory disturbance and identity dissociation. The MDI is a useful tool for screening, initial assessment, diagnostic orientation and monitoring of symptom changes, but it does not replace an in-depth clinical interview or a specialized diagnostic assessment of dissociative disorders.
- Number of questions
- 30 questions
- Estimated duration
- 10 minutes
- Language
- English
- Original name
- Multiscale Dissociation Inventory
- Target audience
- Adolescents, adults
- Authors
- John Briere (2002)
Scoring & interpretation
The 30 items are rated on a 5-point frequency scale. Responses are summed by subscale to obtain a multidimensional dissociative profile; interpretation relies primarily on the six subscales and may include normative conversions into standard scores according to the manual. Higher scores indicate more marked dissociative symptomatology. Interpretation must take into account the traumatic context, the overall clinical picture and differential diagnoses; the MDI alone cannot establish a diagnosis.
Usage
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