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Detecting Domestic Violence: Spanish External Validation of the Index of Spouse Abuse |
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| Authors: | Anna Torres Purificación Navarro Lluïsa García-Esteve Maria Jesús Tarragona Carlos Ascaso Zoe Herreras Estel Gelabert Maria Luisa Imaz Alba Roca Susana Subirà Rocío Martín-Santos |
| Affiliation: | 1. Unit of Perinatal Psychiatry and Gender Research, Psychiatry Department, Neuroscience Clinic Institute, Hospital Clinic Universitari, Barcelona, Spain 8. Unitat de Psiquiatria Perinatal i de Recerca de Gènere (UPPiRG), Hospital Maternitat, C/ Sabino de Arana 1, E-08028, Barcelona, Spain 2. Servei de Promoció de la Dona “Casa Galèria”, Terrassa, Spain 3. Department of Public Health, University of Barcelona, Barcelona, Spain 4. Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain 5. Primary Care Center “Esquerra de l’Eixample” (CAPSE), Barcelona, Spain 6. Department of Clinical and Health Psychology, University Autonoma of Barcelona, Bellaterra, Spain 7. Psychiatry Department, Neuroscience Clinic Institute, Hospital Clinic Universitari, IDIBAPS, CIBERSAM, Barcelona, Spain |
| Abstract: | The aims of the study were to assess the psychometric properties of the Spanish version of the Index of Spouse Abuse (ISA), and to validate it against external criteria of intimate partner violence. The Spanish version of the ISA was administered to 223 non-abused women and 182 victims of intimate partner violence. Internal consistency coefficients oscillated between 0.88 and 0.98. The Confirmatory Factor Analysis failed to replicate the original two-factor structure. Using Exploratory Factor Analysis, a two-factor solution was found: physical (ISA-P) and non-physical (ISA-NP), but the items included in each factor were slightly different from the original two subscales. Receiver operating characteristic curve analysis revealed an AUC value for the ISA global score of 0.99 (95% CI: 0.98–0.99), with the optimal cut-off of 12 for detecting intimate partner violence. The Spanish version of the ISA is a valid instrument for detecting intimate partner violence in a female population. |
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