Reference : Factorial structure and psychometric properties of the French adaptation of the Disso...

	Document type :	Scientific journals : Article
	Discipline(s) :	Social & behavioral sciences, psychology : Treatment & clinical psychology
	To cite this reference:	http://hdl.handle.net/10993/29697

Title :	Factorial structure and psychometric properties of the French adaptation of the Dissociative Experiences Scale (DES) in non-clinical participants
Language :	English
Author, co-author :	Larøi, F. [Department of Psychology: Cognition and Behaviour, University of Liège, boulevard du Rectorat (B33), 4000 Liège, Belgium]
	Billieux, Joël [University of Luxembourg > Faculty of Language and Literature, Humanities, Arts and Education (FLSHASE) > Integrative Research Unit: Social and Individual Development (INSIDE)]
	Defeldre, A.-C. [Catholic University of Louvain, Louvain-la-Neuve, Belgium]
	Ceschi, G. [University of Geneva, Geneva, Switzerland]
	Van Der Linden, M. [Department of Psychology: Cognition and Behaviour, University of Liège, boulevard du Rectorat (B33), 4000 Liège, Belgium, University of Geneva, Geneva, Switzerland]
Publication date :	2013
Journal title :	European Review of Applied Psychology
Publisher :	Elsevier
Volume :	63
Issue/season :	4
Pages :	203-208
Peer reviewed :	Yes (verified by ORBilu)
Audience :	International
ISSN :	1162-9088
City :	Paris
Country :	France
Keywords :	[en] Confirmatory factor analysis ; Dissociation ; Dissociative experiences scale ; Psychometric properties
Abstract :	[en] Introduction The Dissociative Experiences Scale (DES) is a widely used instrument for assessing dissociation. However, there is disagreement regarding the internal structure of the DES and scores tend to be highly skewed. Objective The present study was designed to test the psychometric properties of a French version of the DES in non-clinical participants, in addition to applying a response scale as recommended by Wright and Loftus (1999) in order to resolve the problem of skewed scores. Results Exploratory and confirmatory factor analysis (computed in two independent samples) suggested a two-factor solution, which seem to represent two forms of dissociation ("automatic pilot" related dissociation episodes and "defensive" dissociation episodes). Results also revealed high internal consistency, and satisfactory results in terms of skewness and floor effects. Finally, significant associations with other measures (anxiety, depression, traumatic experiences) indicate good concurrent validity. Conclusions This study offers evidence that the present version of the French adaptation of the DES reveals good psychometric properties. Analyses of the internal structure of the DES suggest that two types of dissociative experiences are being measured: automatic pilot-related dissociation episodes (e.g., associated with different types of cognitive failures) and defensive dissociation episodes that may act as defensive mechanisms, especially in persons who have been traumatized (e.g., the avoidance of a memory related to a traumatic event). © 2013 Elsevier Masson SAS.
Permalink :	http://hdl.handle.net/10993/29697
DOI :	10.1016/j.erap.2013.04.004

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