DES-II and MID support screening or assessment; neither score alone diagnoses or grants EMDR readiness
EMDR dissociation screening: DES-II, MID, and clinical limits
Compare DES-II and MID in EMDR assessment: purpose, psychometric evidence, screening versus diagnosis, language fit, training, and product boundaries.
By the EMDRSuite Editorial Team
Product claims checked against the current EMDRSuite code and interface.
No independent clinical reviewer is named for this guide.
DES and MID answer different assessment questions
The original Dissociative Experiences Scale is a 28-item self-report measure of the frequency of dissociative experiences. The Multidimensional Inventory of Dissociation is a much longer multiscale instrument designed to assess a broad range of pathological dissociation and related response patterns.
EMDRIA describes choosing a right-sized screening or assessment tool according to setting, expertise, history, presentation, and treatment scope. A brief screen, comprehensive inventory, clinical interview, collateral information, observation, and ongoing formulation are not interchangeable.
A screening score is not a diagnosis
A multicenter DES study found that a score of 30 had useful screening characteristics, yet only 17 percent of people scoring at or above that threshold in the representative analysis actually had the target diagnosis. ISSTD guidance explicitly states that brief screens should not be used alone to rule a dissociative disorder in or out.
The MID has its own training, scoring, interpretation, validity indicators, and professional-use context. Neither DES-II nor MID should be reduced to a universal pass/fail number for EMDR, a diagnosis generated without interview, or proof that standard reprocessing is safe.
Language, access, and response context affect interpretation
Translation availability does not guarantee local validation, cultural equivalence, literacy fit, accessibility, or correct interpretation. Symptoms can overlap with PTSD, panic, psychosis, substance effects, neurologic conditions, sleep problems, medication effects, imagination, attention, or ordinary absorption.
Responses may also change with trust, wording, current stress, understanding, and awareness of amnesia or state shifts. Clinicians need competence in differential assessment, risk, stabilization, and referral rather than treating an inventory as an automated clinical decision.
Forms, scores, and diagnostic output are not reproduced
This page does not republish DES-II or MID items, scoring files, cut-off tables, reports, or interpretive manuals. Readers should use authorized versions, current professional guidance, and validated translations appropriate to their setting.
EMDRSuite does not administer dissociation measures, calculate DES or MID scores, diagnose a disorder, flag parts or identities, or decide readiness. Therapist-authored notes remain separate from formal assessment tools.
FAQ
EMDR dissociation screening
What is the difference between DES-II and MID?
DES-II is a brief 28-item self-report screen; MID is a substantially broader multiscale assessment requiring more administration and interpretation expertise.
Does a DES score of 30 diagnose a dissociative disorder?
No. It is a screening threshold, not a diagnosis. In a representative multicenter analysis, only 17 percent scoring at or above 30 had the target diagnosis.
Can a low score prove someone is ready for EMDR?
No. Readiness depends on clinical history, risk, functioning, dual attention, resources, formulation, consent, and ongoing observation, not one score.
Does EMDRSuite score DES-II or MID?
No. The product does not administer, score, interpret, or reproduce either assessment.
References
EMDR dissociation screening: DES-II, MID, and clinical limits
EMDRSuite
Put the guide into practice with EMDRSuite
Run remote EMDR with visual BLS, bilateral sounds, secure patient links, video-ready sessions, saved settings, and notes.
Continue with related EMDR guides