The latent structure of the Peritraumatic Dissociative Experiences Questionnaire.
AuthorBrooks, R; Bryant, RA; Silove, D; Creamer, M; O'Donnell, M; McFarlane, AC; Marmar, CR
Source TitleJ Trauma Stress
Document TypeJournal Article
CitationsBrooks, R., Bryant, R. A., Silove, D., Creamer, M., O'Donnell, M., McFarlane, A. C. & Marmar, C. R. (2009). The latent structure of the Peritraumatic Dissociative Experiences Questionnaire.. J Trauma Stress, 22 (2), pp.153-157. https://doi.org/10.1002/jts.20414.
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C1 - Journal Articles Refereed
This paper has been retracted due to a publisher's error: the order of the authors was incorrect. The Editor and Publisher of the Journal of Traumatic Stress apologize to the authors and our readership. The Peritraumatic Dissociative Experiences Questionnaire (PDEQ) is a widely used measure of peritraumatic dissociation, and is presumably a unidimensional construct. Two hundred forty-seven individuals admitted to five hospitals after traumatic injury were administered the Clinician Administered PTSD Scale, the Hospital Anxiety and Depression Scale, and the PDEQ. Factor analysis indicated that the PDEQ involved two factors containing four items each: one factor (altered awareness) indexes alterations in awareness and the other (derealization) reflects distortions in perceptions of the self and the world. Only the derealization factor was associated with acute stress, anxiety, and depression symptoms. Cross-validation with independent data provided only partial support for the 2-factor structure model. These data indicate that peritraumatic dissociation may involve two distinct constructs.
KeywordsPsychological Methodology; Design and Analysis; Epidemiology; Mental Health; Expanding Knowledge in the Medical and Health Sciences; Mental Health
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