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  Measurement of depressive comorbidity in drug dependents: Validity and diagnostic efficiency of Beck's Depression Inventory (BDI-II) in Dominicans with multiple substance consumption.  The present study proposed two main objectives, a) evaluate the validity of BDI-II for the identification of comorbid depressive symptoms in people with multiple substance abuse (i.e. Known-Groups Validity); and b) verify the diagnostic efficacy of the inventory for the distinction between general population and clinical drug dependents. From a two-stage sampling, a total of 116 Dominicans was selected, of whom 50% were drug-dependent. Analysis of differences between groups and analysis of COR curves were applied. The results show statistically significant and large effect size differences in depression levels in favor of the substance abuse group. In addition, COR curve analyses indicate that depression scores derived from BDI-II have adequate diagnostic performance indices. In short, evidence is provided in favor of the appropriateness and validity of the BDI-II to be applied in a population of drug dependents.  Keywords : Drug dependents; depression; BDI-II; comorbidity; known-groups validity; COR curves; Dominican Republic. Resumen:  El presente estudio se propuso como objetivos, a) evaluar la validez del BDI-II para la identificacion de sintomatologia depresiva comorbida en personas con multiple abuso de sustancias (i.e. Known-Groups Validity); y b) verificar la eficacia diagnostica del inventario para la distincion entre poblacion general y drogodependientes clinicos. A partir de un muestreo bietapico, se selecciono un total de 116 dominicanos de los cuales el 50% era drogodependiente. Se aplicaron analisis de diferencias entre grupos y analisis de curvas COR. Los resultados muestran diferencias estadisticamente significativas, y de tamano del efecto grande, en los niveles de depresion en favor del grupo de personas con problematica de abuso de sustancias. Ademas, los analisis de curvas COR indican que los puntajes de depresion derivados del BDI-II presentan indices de rendimiento diagnostico adecuados. En suma, se aporta evidencia a favor de la adecuacion y validez del BDI-II para ser aplicado en poblacion de drogodependientes.  Palabras clave :  Drogodependencia; depresion; BDI-II; comorbilidad; known-groups validity; curvas COR; Republica Dominicana.

revista de psicopatología y psicología clínica/revista de psicopatología y psicología clínica

Medición de la comorbilidad depresiva en drogodependientes: Validez y eficacia diagnóstica del Inventario de Depresión de Beck (BDI-II) en dominicanos con múltiple consumo de sustancias