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Psychometric properties of the Impact of Event Scale-6 in a sample of victims of bank robbery

Authors Giorgi G, Perez FSF, D'Antonio A, Mucci N, Ferrero C, Cupelli V, Arcangeli G

Received 7 September 2014

Accepted for publication 23 October 2014

Published 1 April 2015 Volume 2015:8 Pages 99—104

DOI https://doi.org/10.2147/PRBM.S73901

Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 3

Editor who approved publication: Professor Igor Elman

Video abstract presented by Gabriele Giorgi.

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Gabriele Giorgi,1 Francisco Saverio Fiz Perez,1 Andrea Castiello D’Antonio,1 Nicola Mucci,2 Claudia Ferrero,3 Vincenzo Cupelli,3 Giulio Arcangeli3

1Department of Psychology, European University, Rome, Italy; 2Occupational Medicine Unit, Department of Public Health, Catholic University of the Sacred Heart, Rome, Italy; 3Health Services Research Unit, Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy

Abstract: Bank robberies are becoming a serious problem in Italy. This study aims to evaluate the validity and the reliability of the Italian version of Impact of Event Scale (IES)-6. It is also hypothesized that a potential posttraumatic disorder, as measured by the IES-6, is associated with mental health problems and several peritraumatic variables. A database was built from data collected through a survey of victims of robbery in an Italian bank. The final sample comprised 350 employees. This study tests different models of IES, comparing the validity of IES-6 with the 22-item original version (IES-R) and the 15-item Italian version (recently adopted in a sample of flood victims). A confirmatory factor analysis supported the IES-6 three-factor solution as the best model. In addition, the internal consistency of the IES-6 and the subscales was good. Outcomes revealed a robust structure supporting the composition of the IES-6 Italian version.

Keywords: bank robbery, employees, posttraumatic, peritraumatic, Impact of Event Scale, questionnaire

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