The structure of peritraumatic dissociation: A cross validation in clinical and nonclinical samples
Abstract
Empirical data have challenged the unidimensionality of the Peritraumatic Dissociative Experiences Questionnaire (PDEQ), a widely used measure for peritraumatic dissociation. The aim of this study was to assess the factor structure of the PDEQ in 3 trauma‐exposed samples: (a) trauma‐exposed police officers (N = 219); (b) trauma‐exposed civilians (N = 158); and (c) treatment‐seeking trauma‐exposed civilians (N = 185). Confirmatory factor analyses using measurement invariance testing supported a 2‐factor structure (CFIs .96–.98; RMSEAs .07–.09), but excluded 2 of the original items. Factor 1 was termed Altered Awareness; Factor 2 was termed Derealization. Altered Awareness reflected disturbances in information processing during the traumatic event, whereas Derealization reflected distortions in perception. Hierarchical linear regression analysis showed that Derealization predicted posttraumatic stress severity at 26.5 weeks follow‐up only in the sample of police officers (R2 = .45). Future longitudinal research shortly following trauma is required to elucidate causality and underlying mechanisms of peritraumatic dissociation, which may contribute to the development of more accurate screening strategies, as well as more effective strategies for prevention and early intervention.<?vsp ‐3.25pt?>
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The PDEQ is valid and reliable.
“The PDEQ is valid and reliable [86].”
From Efficacy of oxytocin administration early after psychotrauma in preventing the development of PTSD: study protocol of a randomized controlled trial (2014) · cites this paper as [86]
Cites
Hu, L., & Bentler, P. M. (1999) · Structural Equation Modeling A Multidisciplinary Journal · doi:10.1080/10705519909540118 · Cited by 108,788 · see citing works
A cognitive model of posttraumatic stress disorder
Ehlers, A., & Clark, D. M. (2000) · Behaviour Research and Therapy · doi:10.1016/s0005-7967(99)00123-0 · Cited by 6,147 · see citing works
Predictors of posttraumatic stress disorder and symptoms in adults: a meta-analysis
Ozer, E. J., Best, S. R., Lipsey, T. L., & Weiss, D. S. (2003) · Psychological Bulletin · doi:10.1037/0033-2909.129.1.52 · Cited by 3,322 · see citing works
Peritraumatic dissociation and posttraumatic stress in male Vietnam theater veterans
Marmar, C. R., Weiss, D. S., Schlenger, W. E., Fairbank, J. A., Jordan, B. K., Kulka, R. A., & Hough, R. L. (1994) · American Journal of Psychiatry · doi:10.1176/ajp.151.6.902 · Cited by 681 · see citing works
Dissociation and hypnotizability in posttraumatic stress disorder
(1988) · American Journal of Psychiatry · doi:10.1176/ajp.145.3.301 · Cited by 373 · see citing works
Marmar, C. R., Weiss, D. S., Metzler, T. J., Ronfeldt, H. M., & Foreman, C. (1996) · Journal of Traumatic Stress · doi:10.1007/bf02116834 · Cited by 250 · see citing works
Relations among peritraumatic dissociation and posttraumatic stress: A meta-analysis
Lensvelt-Mulders, G., van der Hart, O., van Ochten, J. M., van Son, M. J. M., Steele, K., & Breeman, L. (2008) · Clinical Psychology Review · doi:10.1016/j.cpr.2008.03.006 · Cited by 175 · see citing works
Birmes, P. J., Brunet, A., Benoît, M., Defer, S., Hatton, L., Sztulman, H., & Schmitt, L. (2004) · European Psychiatry · doi:10.1016/j.eurpsy.2004.06.033 · Cited by 160 · see citing works
Emotional or educational debriefing after psychological trauma: Randomised controlled trial
Sijbrandij, M., Olff, M., Reitsma, J. B., Carlier, I. V. E., & Gersons, B. P. R. (2006) · British Journal of Psychiatry · doi:10.1192/bjp.bp.105.021121 · Cited by 156 · see citing works
Self-citationSijbrandij, M., Olff, M., Reitsma, J. B., Carlier, I. V. E., de Vries, M. H., & Gersons, B. P. R. (2007) · American Journal of Psychiatry · doi:10.1176/ajp.2007.164.1.82 · Cited by 155 · see citing works
Self-citationCarlier, I. V. E., Voerman, A. E., & Gersons, B. P. R. (2000) · British Journal of Medical Psychology · doi:10.1348/000711200160327 · Cited by 152 · see citing works
Self-citationDonner, A. P. (1982) · The American Statistician · doi:10.1080/00031305.1982.10483055 · Cited by 145 · see citing works
Clinical Utility of a Brief Diagnostic Test for Posttraumatic Stress Disorder
Carlier, I. V. E., Lamberts, R. D., Uchelen, A. J. V., & Gersons, B. P. R. (1998) · Psychosomatic Medicine · doi:10.1097/00006842-199801000-00010 · Cited by 105 · see citing works
Self-citationMemory consistency for traumatic events in Dutch soldiers deployed to Iraq
Engelhard, I. M., van den Hout, M., & McNally, R. J. (2007) · Memory · doi:10.1080/09658210701334022 · Cited by 102 · see citing works
Self-citationMarshall, G. N., Orlando, M., Jaycox, L. H., Foy, D. W., & Belzberg, H. (2002) · Psychological Assessment · doi:10.1037/1040-3590.14.2.123 · Cited by 99 · see citing works
Peritraumatic Distress and the Course of Posttraumatic Stress Disorder Symptoms: A Meta-Analysis
Thomas, E. M., Saumier, D., & Brunet, A. (2012) · The Canadian Journal of Psychiatry · doi:10.1177/070674371205700209 · Cited by 91 · see citing works
van der Velden, P. G., Kleber, R. J., Christiaanse, B., Gersons, B. P. R., Marcelissen, F., Drogendijk, A. N., Grievink, L., Olff, M., & Meewisse, M. L. (2006) · Journal of Traumatic Stress · doi:10.1002/jts.20140 · Cited by 60 · see citing works
Self-citationFikretoglu, D., Brunet, A., Best, S., Metzler, T., Delucchi, K., Weiss, D. S., Fagan, J., & Marmar, C. (2006) · Journal of Nervous & Mental Disease · doi:10.1097/01.nmd.0000244563.22864.f1 · Cited by 42 · see citing works
Donner, A. P. (1982) · The American Statistician · doi:10.2307/2683092 · Cited by 42 · see citing works
The latent structure of the Peritraumatic Dissociative Experiences Questionnaire
Brooks, R., Bryant, R. A., Silove, D. M., Creamer, M. C., O'Donnell, M. L., McFARLANE, A. C., & Marmar, C. R. (2009) · Journal of Traumatic Stress · doi:10.1002/jts.20414 · Cited by 38 · see citing works
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Frijling, J. L., van Zuiden, M., Koch, S. B., Nawijn, L., Goslings, J. C., Luitse, J. S., Biesheuvel, T. H., Honig, A., Bakker, F. C., Denys, D., et al. (2014) · BMC Psychiatry · doi:10.1186/1471-244x-14-92 · Cited by 59 · see citing works
Self-citationThe structure of peritraumatic reactions and their relationship with PTSD among disaster survivors.
Massazza, A., Joffé, H., Hyland, P., & Brewin, C. R. (2021) · Journal of Abnormal Psychology · doi:10.1037/abn0000663 · Cited by 33 · see citing works
Sijbrandij, M., Engelhard, I. M., de Vries, G., Luitse, J. S. K., Carlier, I. V. E., Gersons, B. P. R., & Olff, M. (2013) · Journal of Clinical Psychology in Medical Settings · doi:10.1007/s10880-012-9348-6 · Cited by 14 · see citing works
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Giele, C. L., van den Hout, M. A., Engelhard, I. M., Dek, E. C. P., Toffolo, M. B. J., & Cath, D. C. (2016) · Journal of Behavior Therapy and Experimental Psychiatry · doi:10.1016/j.jbtep.2016.02.001 · Cited by 10 · see citing works
Self-citationCarvalho, T., Pinto‐Gouveia, J., Cunha, M. I. V. A., & da Motta, C. (2022) · Journal of Clinical Psychology · doi:10.1002/jclp.23303 · Cited by 6 · see citing works
Pedunculopontine-induced cortical decoupling as the neurophysiological locus of dissociation.
Smith, D. M., & Terhune, D. B. (2022) · Psychological Review · doi:10.1037/rev0000353 · Cited by 6 · see citing works
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Boykin, D. M., & Orcutt, H. K. (2018) · Journal of Aggression Maltreatment & Trauma · doi:10.1080/10926771.2018.1480548 · Cited by 4 · see citing works
Blose, B. A., Godleski, S. A., Houston, R. J., & Schenkel, L. S. (2022) · Journal of Interpersonal Violence · doi:10.1177/08862605221122832 · Cited by 3 · see citing works
Yrondi, A., Colineaux, H., Claudet, I., de Gauzy, J. S., Huo, S., Taïb, S., Bui, É., & Birmes, P. J. (2022) · European Journal of Psychotraumatology · doi:10.1080/20008066.2022.2121014 · Cited by 2 · see citing works
Primary prevention and epidemiology of trauma- and stress-related disorders
Bragesjö, M., Holmes, E. A., Arnberg, F. K., & Andersson, E. M. (2020) · doi:10.1093/med/9780198713005.003.0082 · Cited by 1 · see citing works
Law Enforcement Officers' Experiences of Exposure to Trauma
Nirenberg, M. B. (2014) · ScholarWorks (Walden University)
Blose, B. A. (2021) · RIT Scholar Works (Rochester Institute of Technology)
State and trait dissociation in pathological skin picking
Spitzer, C., Lübke, L., Müller, S., Conrad, R., & Gallinat, C. (2023) · European Journal of Trauma & Dissociation · doi:10.1016/j.ejtd.2023.100317
Coutinho, E. S. F., Reichenheim, M. E., de Carvalho, T. D. G., Pereira, L. R., Figueira, I. L. D. V., Andreoli, S. B., Quintana, M. I., & Mari, J. D. J. (2025) · Cadernos de Saúde Pública · doi:10.1590/0102-311xen062225
- Authors
- Sijbrandij, M., Engelhard, I. M., Opmeer, B. C., van de Schoot, R., Carlier, I. V. E., Gersons, B. P. R., & Olff, M.
- Affiliations
- Utrecht University (NL)
- Amsterdam UMC Location University of Amsterdam (NL)
- Leiden University Medical Center (NL)
- Corresponding author
- Sijbrandij, Marit
- Venue
- Journal of Traumatic Stress
- Publisher
- Wiley
- Published
- 2012-07-20
- Volume
- 25
- Issue
- 4
- Pages
- 475-479
- ISSN
- 0894-9867 (ISSN-L)
- 1573-6598
- OpenAlex
- W2151231306
- Cited by
- 15
- References
- 19
- Citations by year
- 2025: 1 · 2023: 1 · 2022: 4 · 2021: 2 · 2020: 1 · 2018: 1 · 2016: 2 · 2014: 2 · 2013: 1
- FWCI
- 1.09
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of Traumatic Stress (publishedVersion)
- PubMed (publishedVersion)
- Data Archiving and Networked Services (DANS) (submittedVersion)
- Leiden Repository (Leiden University) (submittedVersion)
- Digital Academic REpository of VU University Amsterdam (Vrije Universiteit Amsterdam) (submittedVersion)
- Pure Amsterdam UMC (submittedVersion)
- VU Research Portal (submittedVersion)
- Topics
- Social Sciences › Psychology › Clinical Psychology › Posttraumatic Stress Disorder Research
- Health Sciences › Medicine › Psychiatry and Mental health › Psychosomatic Disorders and Their Treatments
- Social Sciences › Psychology › Clinical Psychology › Psychoanalysis and Psychopathology Research
- Keywords
- peritraumatic dissociation, factor structure, measurement invariance, derealization, post-traumatic stress disorder, police officers
- MeSH terms
- Adult, Awareness, Depersonalization, Dissociative Disorders, Factor Analysis, Statistical, Female, Humans, Male, Middle Aged, Surveys and Questionnaires, Stress Disorders, Post-Traumatic, Time Factors, Linear Models, Police, Young Adult
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