The validity and reliability of the German version of the Somatoform Dissociation Questionnaire (SDQ-20).
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The validity and reliability of the German version of the Somatoform Dissociation Questionnaire (SDQ-20). / Mueller-Pfeiffer, Christoph; Schumacher, Sonja; Martin-Soelch, Chantal; Pazhenkottil, Aju P; Wirtz, Gustav; Fuhrhans, Christoph; Hindermann, Esther; Assaloni, Herbert; Briner, David P; Rufer, Michael.
In: J TRAUMA DISSOCIATIO, Vol. 11, No. 3, 3, 2010, p. 337-357.Research output: SCORING: Contribution to journal › SCORING: Journal article › Research › peer-review
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TY - JOUR
T1 - The validity and reliability of the German version of the Somatoform Dissociation Questionnaire (SDQ-20).
AU - Mueller-Pfeiffer, Christoph
AU - Schumacher, Sonja
AU - Martin-Soelch, Chantal
AU - Pazhenkottil, Aju P
AU - Wirtz, Gustav
AU - Fuhrhans, Christoph
AU - Hindermann, Esther
AU - Assaloni, Herbert
AU - Briner, David P
AU - Rufer, Michael
PY - 2010
Y1 - 2010
N2 - The present study investigated the validity of the German version of the Somatoform Dissociation Questionnaire (SDQ-20), a scale designed to measure somatoform dissociative symptoms. Somatoform dissociation involves physical manifestations of a dissociation of the personality and is considered a unique entity in the phenomenological spectrum of dissociation. The validity and reliability of the German version of the SDQ-20 was examined using a sample of 225 patients with (n = 39) and without dissociative disorders who were recruited from several in- and outpatient psychiatric clinics. Patients were assessed using structured diagnostic interviews; diagnostic checklists; and self-rating scales for dissociation, and posttraumatic stress. Patients with dissociative disorders reported significantly more (p <.001) somatoform dissociative symptoms than patients without dissociative disorders (criterion validity). Significant correlations (p <.001) were found between scores of somatoform dissociation, psychoform dissociation, posttraumatic stress symptoms, and traumatic childhood experiences (construct validity). Reliability was corroborated by a Cronbach's alpha coefficient of .91 and a test-retest correlation of .89. A component factor analysis suggested unidimensionality of the SDQ-20. In conclusion, the psychometric properties and cross-cultural validity of the German version of the SDQ-20 are excellent. Our results form the basis for the further study of somatoform dissociation in German-speaking populations.
AB - The present study investigated the validity of the German version of the Somatoform Dissociation Questionnaire (SDQ-20), a scale designed to measure somatoform dissociative symptoms. Somatoform dissociation involves physical manifestations of a dissociation of the personality and is considered a unique entity in the phenomenological spectrum of dissociation. The validity and reliability of the German version of the SDQ-20 was examined using a sample of 225 patients with (n = 39) and without dissociative disorders who were recruited from several in- and outpatient psychiatric clinics. Patients were assessed using structured diagnostic interviews; diagnostic checklists; and self-rating scales for dissociation, and posttraumatic stress. Patients with dissociative disorders reported significantly more (p <.001) somatoform dissociative symptoms than patients without dissociative disorders (criterion validity). Significant correlations (p <.001) were found between scores of somatoform dissociation, psychoform dissociation, posttraumatic stress symptoms, and traumatic childhood experiences (construct validity). Reliability was corroborated by a Cronbach's alpha coefficient of .91 and a test-retest correlation of .89. A component factor analysis suggested unidimensionality of the SDQ-20. In conclusion, the psychometric properties and cross-cultural validity of the German version of the SDQ-20 are excellent. Our results form the basis for the further study of somatoform dissociation in German-speaking populations.
KW - Adult
KW - Comorbidity
KW - Germany
KW - Humans
KW - Male
KW - Aged
KW - Female
KW - Middle Aged
KW - numerical data
KW - Adolescent
KW - Questionnaires
KW - Young Adult
KW - Cross-Cultural Comparison
KW - Reproducibility of Results
KW - Switzerland
KW - Child Abuse psychology
KW - Dissociative Disorders diagnosis
KW - Life Change Events
KW - Mental Disorders diagnosis
KW - Personality Inventory statistics
KW - Psychometrics statistics
KW - Somatoform Disorders diagnosis
KW - Stress Disorders, Post-Traumatic diagnosis
KW - Translating
KW - Adult
KW - Comorbidity
KW - Germany
KW - Humans
KW - Male
KW - Aged
KW - Female
KW - Middle Aged
KW - numerical data
KW - Adolescent
KW - Questionnaires
KW - Young Adult
KW - Cross-Cultural Comparison
KW - Reproducibility of Results
KW - Switzerland
KW - Child Abuse psychology
KW - Dissociative Disorders diagnosis
KW - Life Change Events
KW - Mental Disorders diagnosis
KW - Personality Inventory statistics
KW - Psychometrics statistics
KW - Somatoform Disorders diagnosis
KW - Stress Disorders, Post-Traumatic diagnosis
KW - Translating
M3 - SCORING: Zeitschriftenaufsatz
VL - 11
SP - 337
EP - 357
JO - J TRAUMA DISSOCIATIO
JF - J TRAUMA DISSOCIATIO
SN - 1529-9732
IS - 3
M1 - 3
ER -