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      Factor structure of the Symptom Assessment-45 Questionnaire (SA-45) Translated title: Estructura interna del Symptom Assessment-45 Questionnaire (SA-45)

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          Abstract

          Abstract We describe the internal structure of the Symptom Assessment-45 Questionnaire (SA-45; Davison et al., 1997) in a sample of non-clinical Spanish subjects. The scale was developed for treatment outcome assessment in psychiatric settings; however, many studies have examined its psychometric properties in non-clinical populations. The internal structure of these studies usually replicates the dimensionality proposed in the original study closely. In this work, the scale was administered to a sample of 823 participants. In order to analyse the dimensionality of the instrument in a non-clinical population, exploratory and confirmatory factor analyses using polychoric correlations were carried out. The results obtained, are similar to those obtained for the original model and replicated in later studies, but there are important nuances that should be taken into account in defining a measurement model for the sample used. These data confirm the need for further research in a non-clinical population.

          Translated abstract

          Resumen Se describe la estructura interna del Symptom Assessment-45 Questionnaire (SA-45; Davison et al., 1997) en una muestra española no clínica. La escala, fue desarrollada para la evaluación de los tratamientos en entornos psiquiátricos. Sin embargo, muchos estudios han examinado sus propiedades psicométricas en población no clínica. La estructura interna en estos estudios, usualmente replica la dimensionalidad propuesta en el estudio original. En este trabajo, la escala fue administrada a una muestra de 823 participantes. Para analizar su dimensionalidad en población no clínica, se usó Análisis Factorial Exploratorio y Confirmatorio factorizando la matriz de correlaciones policóricas. Los resultados obtenidos, son similares a los del modelo original y replicados en algunos estudios, sin embargo, hay importantes matices que deben ser tenidos en cuenta para definir el modelo en la muestra usada. Los resultados, confirman la necesidad de más investigación en población no clínica.

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          Most cited references25

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          SCL-90: an outpatient psychiatric rating scale--preliminary report.

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            Confirmation of the dimensional structure of the scl-90: A study in construct validation

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              Polychoric versus Pearson correlations in exploratory and confirmatory factor analysis of ordinal variables

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                Author and article information

                Journal
                acp
                Acción Psicológica
                Acción psicol.
                Universidad Nacional de Educación a Distancia (UNED) (Madrid, Madrid, Spain )
                1578-908X
                2255-1271
                June 2019
                : 16
                : 1
                : 31-42
                Affiliations
                [1] orgnameUniversidad Nacional de Educación a Distancia (UNED) España
                Article
                S1578-908X2019000100003 S1578-908X(19)01600100003
                10.5944/ap.16.1.22048
                fa0a148d-8286-42e4-808d-e32271fc9873

                This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

                History
                : 11 May 2018
                : 12 November 2018
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 25, Pages: 12
                Product

                SciELO Spain

                Categories
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                non-clinical population,factor analysis,internal structure,SA-45,análisis factorial,estructura interna,población no clínica

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