The Dissociative Subtype of PTSD Interview (DSP-I): Development and Psychometric Properties

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dc.contributor.authorEidhof, Marloes B.
dc.contributor.authorJune ter Heide, Jackie
dc.contributor.authorvan Der Aa, Niels
dc.contributor.authorSchreckenbach, Monika
dc.contributor.authorSchmidt, Ulrike
dc.contributor.authorBrand, Bethany L.
dc.contributor.authorLanius, Ruth A.
dc.contributor.authorLoewenstein, Richard J.
dc.contributor.authorSpiegel, David
dc.contributor.authorVermetten, Eric
dc.date.accessioned2023-07-31T21:11:36Z
dc.date.available2023-07-31T21:11:36Z
dc.date.issued2019-05-28
dc.description19 pagesen_US
dc.description.abstractThe inclusion of the dissociative subtype of post-traumatic stress disorder (PTSD-DS) in the fifth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM–5) reflects the importance of assessing PTSD-DS. We developed the Dissociative Subtype of PTSD Interview (DSP-I). This clinician-administered instrument assesses the presence and severity of PTSD-DS (i.e., symptoms of depersonalization or derealization) and contains a supplementary checklist that enables assessment and differentiation of other trauma-related dissociative symptoms (i.e., blanking out, emotional numbing, alterations in sensory perception, amnesia, and identity confusion). The psychometric properties were tested in 131 treatment-seeking individuals with PTSD and histories of multiple trauma, 17.6 % of whom met criteria for PTSDDS in accordance with the DSP-I. The checklist was tested in 275 treatment-seeking individuals. Results showed the DSP-I to have high internal consistency, good convergent validity with PTSD-DS items of the CAPS-5, and good divergent validity with scales of somatization, anxiety and depression. The depersonalization and derealization scales were highly associated. Moreover, the DSP-I accounted for an additional variance in PTSD severity scores of 8% over and above the CAPS-5 and number of traumatic experiences. The dissociative experiences of the checklist were more strongly associated with scales of overall distress, somatization, depression, and anxiety than scales of depersonalization and derealization. In conclusion, the DSP-I appears to be a clinically relevant and psychometrically sound instrument that is valuable for use in clinical and research settings.en_US
dc.identifier.citationMarloes B. Eidhof, F. Jackie June ter Heide, Niels van Der Aa, Monika Schreckenbach, Ulrike Schmidt, Bethany L. Brand, Ruth A. Lanius, Richard J. Loewenstein, David Spiegel & Eric Vermetten (2019) The Dissociative Subtype of PTSD Interview (DSP-I): Development and Psychometric Properties, Journal of Trauma & Dissociation, 20:5, 564-581, DOI: 10.1080/15299732.2019.1597806en_US
dc.identifier.doihttps://doi.org/10.1080/15299732.2019.1597806
dc.identifier.urihttps://www.tandfonline.com/doi/full/10.1080/15299732.2019.1597806
dc.identifier.urihttps://hdl.handle.net/1794/28625
dc.language.isoenen_US
dc.publisherTaylor & Francis Groupen_US
dc.rightsCreative Commons BY-NC-ND 4.0-USen_US
dc.subjectcomplex traumaen_US
dc.subjectsemi-structured clinical interviewen_US
dc.subjectassessmenten_US
dc.subjectprevalenceen_US
dc.subjectcomplex posttraumatic stress disorder (CPTSD)en_US
dc.titleThe Dissociative Subtype of PTSD Interview (DSP-I): Development and Psychometric Propertiesen_US
dc.typeArticleen_US

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Journal of Trauma & Dissociation : Vol. 20, No. 5 (2019)