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

Giorgi G, Fiz Perez FS, Castiello D'Antonio A, Mucci N, Ferrero C, Cupelli V, Arcangeli G - Psychol Res Behav Manag (2015)

Bottom Line: 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 confirmatory factor analysis supported the IES-6 three-factor solution as the best model.Outcomes revealed a robust structure supporting the composition of the IES-6 Italian version.

View Article: PubMed Central - PubMed

Affiliation: Department of Psychology, European University, Rome, 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.

No MeSH data available.


Related in: MedlinePlus

Confirmatory factor analysis for the IES-R (n=350).Abbreviation: IES-R, Impact of Event Scale – Revised.
© Copyright Policy
Related In: Results  -  Collection

License
getmorefigures.php?uid=PMC4388003&req=5

f1-prbm-8-099: Confirmatory factor analysis for the IES-R (n=350).Abbreviation: IES-R, Impact of Event Scale – Revised.

Mentions: To test the validity of the IES, we followed a confirmatory approach with two distinguishable measurement models. These were one-dimensional models with all items measuring the same latent variable and three-dimensional models with items loading exclusively on each posttraumatic factor. In addition, we considered the fit of the IES-6 by comparing those obtained by the IES-15 and IES-22 versions. The analysis showed that an overall posttraumatic stress measure (one dimension) does not fit well to the data, whereas the three-dimensional solution is associated with acceptable descriptive fit indices. Data showed a better fit for the 6-item version (Table 1), whereas the 22-item version does not seem valid and the 15-item version seems acceptable; the 6-item version presents good validity with all fit indices, also respecting more stringent validity criteria. In addition, the standardized factor loadings for the IES-6 three-factor model were all statistically significant (P<0.001) and ranged from 0.72 to 0.84 (Figure 1).


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

Giorgi G, Fiz Perez FS, Castiello D'Antonio A, Mucci N, Ferrero C, Cupelli V, Arcangeli G - Psychol Res Behav Manag (2015)

Confirmatory factor analysis for the IES-R (n=350).Abbreviation: IES-R, Impact of Event Scale – Revised.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4388003&req=5

f1-prbm-8-099: Confirmatory factor analysis for the IES-R (n=350).Abbreviation: IES-R, Impact of Event Scale – Revised.
Mentions: To test the validity of the IES, we followed a confirmatory approach with two distinguishable measurement models. These were one-dimensional models with all items measuring the same latent variable and three-dimensional models with items loading exclusively on each posttraumatic factor. In addition, we considered the fit of the IES-6 by comparing those obtained by the IES-15 and IES-22 versions. The analysis showed that an overall posttraumatic stress measure (one dimension) does not fit well to the data, whereas the three-dimensional solution is associated with acceptable descriptive fit indices. Data showed a better fit for the 6-item version (Table 1), whereas the 22-item version does not seem valid and the 15-item version seems acceptable; the 6-item version presents good validity with all fit indices, also respecting more stringent validity criteria. In addition, the standardized factor loadings for the IES-6 three-factor model were all statistically significant (P<0.001) and ranged from 0.72 to 0.84 (Figure 1).

Bottom Line: 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 confirmatory factor analysis supported the IES-6 three-factor solution as the best model.Outcomes revealed a robust structure supporting the composition of the IES-6 Italian version.

View Article: PubMed Central - PubMed

Affiliation: Department of Psychology, European University, Rome, 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.

No MeSH data available.


Related in: MedlinePlus