Spanish adaptation of the Markova and Berrios Insight scale.

INTRODUCTION: The aim of this study was to adapt the Markova and Berrios Insight scale in Spanish and to analyze its psychometric properties and relationships to the severity of the psychotic symptoms. METHODOLOGY: A translation-backtranslation of the original scale was elaborated and a panel of professionals participated to assess conceptual equivalence and naturality. This is a 30-item self-administered scale with response options Yes/No. A total of 170 psychotic patients were assessed according to DSM-IV-TR diagnostic criteria. Confirmatory factor analysis validated the structure originally proposed. Internal consistency was evaluated using Cronbach's Alpha Coefficient and the Intraclass Correlation Coefficient (ICC). We calculated the association between variables with Spearman's rank correlation coefficient. RESULTS: The 4-factors structure originally proposed by Markova and Berrios was verified. Cronbach's alpha coefficient value for the whole scale was 0.824, indicating good internal consistency. The ICC value was 0.855. There were no statistically significant relationships between severity of psychotic symptoms and the lack of insight. CONCLUSIONS: The Spanish adaptation of the Markova and Berrios Insight Scale has good internal and external reliability. It is simple and easy to perform and very sensitive to change.

Adaptación al castellano de la escala de Insight de Marková y Berrios / Spanish adaptation of the Markova and Berrios Insight scale

Introducción. El objetivo de este estudio fue realizar la adaptación al castellano de la escala de Insight de Markováy Berrios, así como analizar sus propiedades psicométricas y su relación con la gravedad de la sintomatología psicótica. Metodología. Se utilizó un método de traducción-retrotraducción y la participación de un panel de profesionales para valorar equivalencia conceptual y naturalidad. Se trata de una escala de autoaplicación de 30 ítems con opciones de respuesta Sí/No. Fueron valorados 170 pacientes psicóticos según criterios DSM-IV-TR. Mediante análisis factorial confirmatorio se validó la estructura propuesta originalmente. La consistencia interna se evaluó a través del Coeficiente Alfa de Cronbach y el Coeficiente de correlación intraclase (CCI). La asociación entre las variables se analizó con el coeficiente de correlación de Spearman. Resultados. La estructura de 4 factores propuesta originalmente se verifica en gran medida. El valor del Coeficiente alfa de Cronbach para toda la escala fue de 0.824 indicando una buena consistencia interna. El valor del CCI fue de 0.855.No se observaron relaciones estadísticamente significativas entre la gravedad de la sintomatología psicótica y el déficit de insight valorado con la escala de Marková y Berrios. Conclusiones. La versión castellana de la Escala de Insightde Marková y Berrios presenta validez de constructo, buena consistencia interna, buena validez externa, es sencilla ,de fácil aplicación y de fiabilidad temporal (AU)

Introduction. The aim of this study was to adapt the Markova and Berrios Insight scale in Spanish and to analyze its psychometric properties and relationships to the severity of the psychotic symptoms. Methodology. A translation-backtranslation of the original scale was elaborated and a panel of professionals participated to assess conceptual equivalence and naturality. This is a 30-item self-administered scale with response options Yes/No. A total of 170 psychotic patients were assessed according to DSM-IV-TR diagnostic criteria. Confirmatory factor analysis validated the structure originally proposed. Internal consistency was evaluated using Cronbach’s Alpha Coefficient and the Intraclass Correlation Coefficient (ICC).We calculated the association between variables with Spearman’s rank correlation coefficient. Results. The 4-factors structure originally proposed by Markova and Berrios was verified. Cronbach’s alpha coefficient value for the whole scale was 0.824, indicating good internal consistency. The ICC value was 0.855. There were no statistically significant relationships between severity of psychotic symptoms and the lack of insight. Conclusions. The Spanish adaptation of the Markova and Berrios Insight Scale has good internal and external reliability. It is simple and easy to perform and very sensitive to change (AU)