Psychometric properties of the Spanish Peritraumatic Dissociative Experiences Questionnaire in Chilean firefighters

Ramos, Nadia; Spencer, Rosario; Maia, Angela; Vivanco, Carolina

Abstract

Introduction: In Chile tools to evaluate peritraumatic dissociation are inexistent. The aim of this study was translate and analyze the psychometric properties of the Peritraumatic Dissociative Experiences Questionnaire (PDEQ), in a sample of firefighters. Method: Chilean firefighters filled out the assessment protocol. The final sample was 207 participants. We tested examined the consistency by estimating Cronbach’s α and the construct validity through confirmatory factor analysis (CFA). Two models were evaluated: the intercorrelated 2-factor model and a single-factor model. We used the maximum likelihood procedure. Results: Cronbach’s α for the 2-factor model (8-item, without items 2 and 7) was .72 and for model with all items was .74. The 2-factor model showed an adequate fit to the data χ2df = 2.29, CFI = .93, RMSEA = .079. On the other hand, a single-factor model with all items, showed an inadequate fit χ2df= 3.07, CFI = .83, RMSEA = .10. Discussion: The CFA of the Spanish PDEQ in a sample the Chilean firefighters show that the PDEQ consists of two intercorrelated factors: Altered Awareness and Derealization. The results are similar to those found in others studies.

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Fecha de publicación: 2017
Año de Inicio/Término: Junio - 2017