Validity and reliability of the Spanish version of the Somatoform Dissociation Questionnaire(SDQ-20)
- Ana Isabel González-Vázquez 1
- Lucía del Río-Casanova 2
- Natalia Seijo-Ameneiros 3
- Paloma Cabaleiro-Fernández 4
- Teresa Seoane-Pillado 5
- Ania Justo-Alonso 6
- Miguel Ángel Santed-Germán 7
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1
Complexo Hospitalario Universitario da Coruña
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- 2 Clínica Assistens (A Coruña)
- 3 Centro de Psicología y Trauma (Ferrol)
- 4 Centro de Psicoterapia (Ourense)
- 5 Instituto de Investigación Biomédica de A Coruña (INIBIC)
- 6 Clínica Assistens (Vigo)
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7
Universidad Nacional de Educación a Distancia
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ISSN: 0214-9915
Ano de publicación: 2017
Volume: 29
Número: 2
Páxinas: 275-280
Tipo: Artigo
Outras publicacións en: Psicothema
Resumo
Antecedentes: SDQ-20 (Somatoform Dissociation Questionnaire) es un autoinforme que mide la presencia de disociación somatomorfa. Se analizan las propiedades psicométricas de la versión española de la SDQ-20 y su versión abreviada (SDQ-5). Método: su validez y fiabilidad han sido examinadas en una muestra de 360 pacientes: 38 trastorno disociativo (de conversión), 30 trastorno disociativo (psicomorfo) y 292 diagnosticados de otros trastornos. El diagnóstico de trastorno disociativo se realizó mediante la SCID-D-TR y una entrevista específica para los trastornos conversivos. Resultados: los sujetos que cumplieron criterios de trastorno disociativo o conversivo puntuaron significativamente más alto en la SDQ-20 (criterio de validez). La disociación psicomorfa y somatomorfa y el trauma temprano se correlacionaron significativamente (validez del constructo). Se obtuvieron un coeficiente alpha de 0.866 (fiabilidad) y una correlación test-retest de 0,91. El punto de corte para los trastornos disociativos fue 27,5 (sensibilidad 81,6% y especificidad 71%) y 29,5 para los trastornos conversivos (81,6% y 71%). En la SDQ-5 se obtuvo un coeficiente alpha de 0,561 y un punto de corte de 5,5 (sensibilidad 73,33% y especificidad 70,41%). Conclusiones: la versión española de la SDQ-20 presenta buenas propiedades psicométricas. La SDQ-5 muestra peores características y su uso en muestras españolas no se recomienda.
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