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Somatoform Dissociation Questionnaire (SDQ) Test

Take the online Somatoform Dissociation Questionnaire (SDQ) Test - AI psychologist FreudlyYou can take Somatoform Dissociation Questionnaire (SDQ) Test here. Online version of a simple and accurate psychological test with interpretation.en
In about four minutes, the Somatoform Dissociation Questionnaire (SDQ) Test presents 20 questions about bodily and sensory experiences. Your result indicates the severity of somatoform symptoms associated with dissociative processes, helping you reflect on your experiences and decide whether further discussion may be useful.
Questions: 204 minutes
Somatoform Dissociation Questionnaire (SDQ): situation and reply bubbles
October 2, 2025October 2, 2025Material has been updatedOctober 2, 2025Material has been published
30,280 views
3,206 completions
2,493 likes
Daniel HallPsychologist · Test reviewer
2,493 likes
Scale Explorer

How the Scales are Structured

Somatoform DissociationSD
Assesses the severity of somatic symptoms linked to dissociative processes (somatoform dissociation).
example score26/100
26/100Lowexample score
20 – 29Low
30 – 100Elevated (above threshold)
A score of 26 falls in the Low range, suggesting fewer somatoform dissociation-related bodily symptoms on this screening measure.
just completed the test
DATA-BASED USER COHORTS

Who Usually Takes This Test?

Clients with unexplained symptoms
41%OF USERS
People who have numbness, strange sensations, pain, or loss of control without clear medical findings take it to see if stress or trauma may be showing up through the body.
Trauma-focused therapy clients
34%OF USERS
People already working through trauma use it to check for dissociative body reactions and track whether symptoms change during treatment.
Mental health clinicians screening
25%OF USERS
Psychologists and psychiatrists use the brief questions for quick initial screening and to decide what bodily and memory-related symptoms to explore further.
BASED ON AGGREGATED, ANONYMIZED DATA FROM TENS OF THOUSANDS OF FREUDLY USERS.
Benchmarking

See How You Compare

Once you complete the test, your results are compared with real-world data from people in your country.
Below is a preview of how scores are typically distributed across each scale.
Shaded area — where most people score
Dot — the average
You — your score lands on each curve after the test— your score, after the test
Somatoform Dissociation ScaleSDS
You?
Average62.7
Typical rangeTypical48.8 – 76.6
Possible20 – 100
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SAMPLE QUESTIONS

Example Questions From the Test

Below is a list of various physical symptoms or bodily sensations that you may have experienced either briefly or over a longer period of time. Please indicate the extent to which these experiences applied to you during the past year.
    • Does not apply to me at all
    • Applies to me just a little
    • Applies to me to a moderate degree
    • Applies to me somewhat
    • Applies to me very much
    • Does not apply to me at all
    • Applies to me very slightly
    • Applies to me moderately
    • Applies to me slightly
    • Applies to me very strongly
    • Does not apply to me at all
    • Applies to me only a little
    • Applies to me moderately
    • Applies to me somewhat
    • Applies to me very much
WHAT THE TEST MEASURES

Somatoform Dissociation Questionnaire (SDQ) Test - Description and methodology of the test

dissociation

People who notice unusual changes in sensation, movement, speech, hearing, vision, pain, or other bodily functions may use this self-report measure to organize what they have experienced. The Somatoform Dissociation Questionnaire (SDQ) Test examines the severity of bodily symptoms associated with dissociative processes. It offers a structured way to reflect on somatoform dissociation symptoms and decide what questions to discuss in a broader evaluation.

What This Assessment Explores

These items examine bodily and sensory experiences rather than one complaint. They cover altered hearing, vision, smell, taste, body perception, numbness, pain, urination, swallowing, speech, movement, freezing, and seizure-like episodes. The scale assesses the severity of somatoform symptoms associated with dissociative processes.

For people exploring bodily dissociation, this somatoform dissociation test shows how strongly these experiences are endorsed. The scale is Somatoform Dissociation, scored 20-100, with Low 20-29 and Elevated (above threshold) 30-100.

The main themes represented by the items are:

  • Sensory changes show altered hearing, vision, smell, taste, or body perception.
  • Bodily symptoms capture pain, numbness, urination, swallowing, or absent sensation.
  • Motor and speech changes reflect freezing, paralysis-like episodes, or difficulty speaking.
  • Arousal experiences include seizure-like episodes and unusual daytime activity without sleep.

The result describes a reported pattern, not the cause of an individual symptom.

Methodology and Scientific Basis

The item themes and five-point response structure are consistent with the published SDQ-20, although findings for that instrument do not establish identical norms or validation for every online presentation. Its original study used clinical item selection and Mokken scale analysis, while a replication examined the stability of its measurement properties. A later scoring paper explains that the total is formed by adding item ratings.

Five ordered response options generally range from not at all or does not apply to very much or very true for me, and are coded from 1 to 5. Higher endorsements therefore increase the total across the set; this is the scoring logic behind the SDQ-20 questionnaire.

Published studies report strong scalability and psychometric support for the instrument, but those findings do not automatically establish identical norms for every translation, interface, or user group. Read the online result as a screening indication rather than a diagnosis: current health, attention to bodily sensations, memory, and response style can influence self-report, and the questionnaire cannot settle medical causes.

Author: Nijenhuis, E.
Literature:
  • Nijenhuis, E.R.S., Spinhoven, P., van Dyck, R., van der Hart, O., & Vanderlinden, J. (1996). The development and psychometric characteristics of the Somatoform Dissociation Questionnaire (SDQ-20). Journal of Nervous and Mental Disease, 184(11), 688-694. 10.1097/00005053-199611000-00006
  • Nijenhuis, E.R.S., Spinhoven, P., van Dyck, R., van der Hart, O., & Vanderlinden, J. (1998). Psychometric characteristics of the somatoform dissociation questionnaire: A replication study. Psychotherapy and Psychosomatics, 67(1), 17-23. 10.1159/000012254
  • Nijenhuis, E.R.S. (2010). The Scoring and Interpretation of the SDQ-20 and SDQ-5. Activitas Nervosa Superior, 52, 24-28. 10.1007/BF03379561

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