Psychometric behaviour of the strengths and difficulties questionnaire (SDQ) in the Spanish national health survey 2006

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Títol: Psychometric behaviour of the strengths and difficulties questionnaire (SDQ) in the Spanish national health survey 2006
Autors: Gómez-Beneyto, Manuel | Nolasco, Andreu | Moncho, Joaquin | Pereyra-Zamora, Pamela | Tamayo Fonseca, Nayara | Munarriz, Mikel | Salazar, José | Tabarés-Seisdedos, Rafael | Girón, Manuel
Grups d'investigació o GITE: Grupo Balmis de Investigación en Salud Comunitaria e Historia de la Ciencia
Centre, Departament o Servei: Universidad de Alicante. Departamento de Enfermería Comunitaria, Medicina Preventiva y Salud Pública e Historia de la Ciencia
Paraules clau: Psychometrics | Mental disorders diagnosed in childhood | Health survey | Strengths and difficulties questionnaire | Spain
Àrees de coneixement: Enfermería
Data de publicació: 22-de març-2013
Editor: BioMed Central
Citació bibliogràfica: GÓMEZ-BENEYTO, Manuel, et al. “Psychometric behaviour of the strengths and difficulties questionnaire (SDQ) in the Spanish national health survey 2006”. BMC Psychiatry 2013, 13:95. doi:10.1186/1471-244X-13-95
Resum: Background: The Strengths and Difficulties Questionnaire (SDQ) is a tool to measure the risk for mental disorders in children. The aim of this study is to describe the diagnostic efficiency and internal structure of the SDQ in the sample of children studied in the Spanish National Health Survey 2006. Methods: A representative sample of 6,773 children aged 4 to 15 years was studied. The data were obtained using the Minors Questionnaire in the Spanish National Health Survey 2006. The ROC curve was constructed and calculations made of the area under the curve, sensitivity, specificity and the Youden J indices. The factorial structure was studied using models of exploratory factorial analysis (EFA) and confirmatory factorial analysis (CFA). Results: The prevalence of behavioural disorders varied between 0.47% and 1.18% according to the requisites of the diagnostic definition. The area under the ROC curve varied from 0.84 to 0.91 according to the diagnosis. Factor models were cross-validated by means of two different random subsamples for EFA and CFA. An EFA suggested a three correlated factor model. CFA confirmed this model. A five-factor model according to EFA and the theoretical five-factor model described in the bibliography were also confirmed. The reliabilities of the factors of the different models were acceptable (>0.70, except for one factor with reliability 0.62). Conclusions: The diagnostic behaviour of the SDQ in the Spanish population is within the working limits described in other countries. According to the results obtained in this study, the diagnostic efficiency of the questionnaire is adequate to identify probable cases of psychiatric disorders in low prevalence populations. Regarding the factorial structure we found that both the five and the three factor models fit the data with acceptable goodness of fit indexes, the latter including an externalization and internalization dimension and perhaps a meaningful positive social dimension. Accordingly, we recommend studying whether these differences depend on sociocultural factors or are, in fact, due to methodological questions.
ISSN: 1471-244X
DOI: 10.1186/1471-244X-13-95
Idioma: eng
Tipus: info:eu-repo/semantics/article
Drets: © 2013 Gómez-Beneyto et al.; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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