Validity and reliability of the Spanish version of the Somatoform Dissociation Questionnaire(SDQ-20)

  1. Ana Isabel González-Vázquez 1
  2. Lucía del Río-Casanova 2
  3. Natalia Seijo-Ameneiros 3
  4. Paloma Cabaleiro-Fernández 4
  5. Teresa Seoane-Pillado 5
  6. Ania Justo-Alonso 6
  7. Miguel Ángel Santed-Germán 7
  1. 1 Complexo Hospitalario Universitario da Coruña
    info

    Complexo Hospitalario Universitario da Coruña

    La Coruña, España

    ROR https://ror.org/044knj408

  2. 2 Clínica Assistens (A Coruña)
  3. 3 Centro de Psicología y Trauma (Ferrol)
  4. 4 Centro de Psicoterapia (Ourense)
  5. 5 Instituto de Investigación Biomédica de A Coruña (INIBIC)
  6. 6 Clínica Assistens (Vigo)
  7. 7 Universidad Nacional de Educación a Distancia
    info

    Universidad Nacional de Educación a Distancia

    Madrid, España

    ROR https://ror.org/02msb5n36

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Journal:
Psicothema

ISSN: 0214-9915

Year of publication: 2017

Volume: 29

Issue: 2

Pages: 275-280

Type: Article

DOI: 10.7334/PSICOTHEMA2016.346 DIALNET GOOGLE SCHOLAR lock_openOpen access editor

More publications in: Psicothema

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Abstract

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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