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Evaluation of the Swedish version of Dissociation Questionnaire (DIS-Q), Dis-Q-Sweden, Among Adolescents
Linköping University, Department of Clinical and Experimental Medicine, Child and Adolescent Psychiatry . Linköping University, Faculty of Health Sciences.
Department of Child and Adolescent Psychiatry, Lund University, Lund, Sweden.
2006 (English)In: Journal of Trauma & Dissociation, ISSN 1529-9732, Vol. 7, no 3, 65-89 p.Article in journal (Refereed) Published
Abstract [en]

The aim of this study was to investigate the psychometric properties of the Swedish version of the Dissociation Questionnaire in a normative adolescent population and also to investigate dissociative symptoms associated with trauma including sexual and physical abuse. A normative sample of 449 adolescents between the ages of 12 and 19 and a clinical group of 74 adolescents with known experiences of trauma, sexual and/or physical abuse was given Dis-Q-Sweden. A mixed group of 22 abused and non-abused adolescents who answered Dis-Q-Sweden was also interviewed by using the Structural Clinical Interview for DSM-IV Dissociative Disorders (SCID-D). A test-retest procedure was conducted with 90 subjects from the normative group. The results showed good reliability concerning both internal consistency and test-retest stability. Validity was tested in several ways (criterion, predictive, construct and concurrent) and found to be satisfactory. Significant differences for the total sum scores of Dis-Q-Sweden were found between the normative group and the clinical group with known sexual abuse (p < 0.001). The prevalence of dissociative symptoms (cut-off score > 2.5) was 2.3% in the normative group and 50% in the clinical group. Dis-Q-Sweden has proven to be a screening instrument with good psychometric properties and has proven to be able to capture dissociative symptoms in adolescents with self-reported trauma and known trauma (sexual abuse).

Place, publisher, year, edition, pages
2006. Vol. 7, no 3, 65-89 p.
Keyword [en]
Dis-Q-Sweden; method; dissociation; adolescents; trauma
National Category
Medical and Health Sciences
URN: urn:nbn:se:liu:diva-14267DOI: 10.1300/J229v07n03_05OAI: diva2:23056
Available from: 2007-01-31 Created: 2007-01-31
In thesis
1. Trauma, Posttraumatic Stress and Dissociation Among Swedish Adolescents: Evaluation of Questionnaires
Open this publication in new window or tab >>Trauma, Posttraumatic Stress and Dissociation Among Swedish Adolescents: Evaluation of Questionnaires
2007 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

The main aim of this thesis has been to investigate trauma and dissociation among Swedish adolescents and to evaluate the psychometric properties such as reliability and various kinds

of validity of three screening instruments for assessment of dissociation and other symptoms of post traumatic stress. The three instruments in question have been Dis-Q-Sweden, A-DES and TSCC, the symptoms measured by these instruments are neither easy to capture nor easy for the adolescent to talk about. Therefore these self report scales are essential. A second aim has been to compare the results with results from other countries and to develop preliminary Swedish norms for the clinician to use. Age and gender differences have been looked upon as well as assessed symptoms connected to known experienced trauma/sexual and/or physical abuse and self-reported trauma in normal and clinical populations.

The populations, in this thesis have been children and adolescents age 10 -19 years old from the general population; the clinical groups have had the same age range. All children and adolescents in the clinical groups have been sexually and/or physically abused. Participants have answered the questionnaires Dis-Q-Sweden, A-DES and/or TSCC and their answers have been statistically analysed.

All three instruments have been shown to have good reliability, such as internal consistency and test-retest. Validity has been established through factor analyses, concurrent, and criterion related validity. Clinical groups with known experienced trauma/sexual abuse and/or physical abuse gave significantly higher scores on all the instruments compared to normative groups. Also self-reported trauma in a normative group gave significantly higher scores even if the significances are not as high as between the normative and clinical groups. Girls scored significantly higher than boys in both the clinical and normative groups. Girls in the age range 14-15 years old gave the significantly highest scores on both Dis-Q-Sweden and ADES. Swedish adolescents gave lower mean scores on all three instruments than have been reported from other studies in other countries. The scores from the clinical groups gave about the same mean as have been reported elsewhere.

The conclusion from this thesis is that all the three questionnaires Dis-Q-Sweden, A-DES and TSCC have shown satisfactory psychometrics properties and can very well be used by Swedish clinicians in Child and Adolescents Psychiatry.

Place, publisher, year, edition, pages
Institutionen för molekylär och klinisk medicin, 2007. 61 p.
Linköping University Medical Dissertations, ISSN 0345-0082 ; 979
Trauma, Post traumatic stress, Dissociation, Children, Adolescents, Screening instruments
National Category
urn:nbn:se:liu:diva-8225 (URN)978-91-85715-96-1 (ISBN)
Public defence
2007-02-09, Berzeliussalen, Campus US, Linköpings Universitet, Linköping, 13:00 (English)
Available from: 2007-01-31 Created: 2007-01-31 Last updated: 2009-08-20

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Nilsson, DorisSvedin, Carl Göran
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