Dissociative disorders: 7 questionnaires and rating scales

Dissociation questionnaires are psychometric tools that explore depersonalization, derealization and disruptions of consciousness, memory and identity. They support the identification of dissociative experiences and the monitoring of their intensity.

Structured Clinical Interview for DSM Dissociative Disorders

SCID-D

Structured Clinical Interview for DSM Dissociative Disorders (SCID-D)

The SCID-D is a semi-structured clinical interview for assessing the presence and severity of dissociative disorders according to DSM criteria. It is used to identify different aspects of dissociation, including amnesia, depersonalization, derealization, confusion and dissociative identity, which facilitates differential diagnosis with other psychological disorders.

276 questions~90 minAdults, adolescents
Child Dissociative Checklist

CDC

Child Dissociative Checklist (CDC)

The CDC is a screening tool completed by adult informants (parents, teachers, clinicians) to assess dissociative symptoms in children aged 5 to 12. It is frequently used in clinical settings to identify children with dissociative difficulties, which may be related to traumatic experiences.

20 questions~10 minChildren (ages 5-12)
Cambridge Depersonalization Scale

CDS

Cambridge Depersonalization Scale (CDS)

The Cambridge Depersonalization Scale (CDS) is a self-report questionnaire designed to measure the frequency and duration of depersonalization and derealization experiences over the past six months. This tool is particularly useful for clinical screening, for assessing the severity of dissociative symptoms and for monitoring their course over time. It explores phenomena such as a sense of strangeness toward oneself, the feeling of being detached from one's body, the impression that one's surroundings are unreal, and emotional numbing.

29 questions~10 minAdolescents and adults
Clinician-Administered Dissociative States Scale

CADSS

Clinician-Administered Dissociative States Scale (CADSS)

The CADSS is a clinical assessment tool for measuring the intensity of dissociative symptoms, such as depersonalization, derealization, and amnesia, specifically within a semi-structured interview. It is commonly administered by the clinician in experimental or clinical situations, particularly with patients suffering from trauma- and stressor-related disorders.

27 questions~10 minAdults
Dissociative Experience Scale

DES-II

Dissociative Experiences Scale (DES-II)

The Dissociative Experiences Scale (DES) is a self-report tool used to identify symptoms of dissociation. It is often used in clinical settings to screen for dissociative disorders such as dissociative identity disorder. The test covers various aspects of dissociation, including derealization, dissociative amnesia and depersonalization experiences.

28 questions~7 minAdults
Dissociation Questionnaire

DIS-Q

Dissociation Questionnaire (DIS-Q)

The Dissociation Questionnaire (DIS-Q) is a self-report instrument for assessing the frequency and severity of dissociative experiences in individuals. It is particularly relevant for screening for dissociative disorders, especially in clinical settings with people who have experienced psychological trauma or have conditions associated with dissociative symptoms.

63 questions~15 minAdults
Adolescent Dissociative Experiences Scale

A-DES

Adolescent Dissociative Experiences Scale (A-DES)

The A-DES is a self-report tool designed to detect and quantify dissociative experiences in adolescents. It identifies both the frequency and the nature of dissociative symptoms, which can be useful for initial screening during a psychological assessment or for clinical follow-up. Its version adapted for adolescents takes into account the developmental characteristics of this population.

30 questions~10 minAdolescents

Frequently asked questions

What is a dissociation scale used for?

It identifies and quantifies dissociative experiences that often go unspoken, in order to guide the clinical assessment and track how they change.

Does a high score confirm a dissociative disorder?

No. A high score flags experiences to explore; the diagnosis rests on the clinical interview and an examination of the context, especially any trauma.

Do these scales replace the interview?

No. They are screening and monitoring aids that complement the clinical assessment without replacing it.

Dissociation in clinical practice

Dissociative phenomena span a continuum, from benign, transient experiences to structured presentations such as dissociative identity disorder. They are frequently associated with a history of trauma and complex trauma.

Scales offer systematic screening for experiences that patients rarely bring up spontaneously. A numerical score helps quantify their intensity and guide a thorough clinical interview.

  • The dissociative continuum in DSM-5.
  • Screen for symptoms that are rarely voiced.
  • Choose according to the presentation being explored.