Psychometric Properties of the Zung Self-Applied Anxiety Scale
DOI:
https://doi.org/10.18537/mskn.16.02.02Keywords:
propiedades psicométricas, validez factorial, escala de ansiedad de Zung, personal sanitario, EcuadorAbstract
The Zung Anxiety Scale, originally known as the Self-Rating Depression Scale (SDS) and developed by Zung in 1965, was designed in 1971. In the following study, the psychometric properties of the Zung Self-Applied Anxiety Scale were evaluated in health care personnel in Ecuador. A total of 1104 individuals participated, all employed in public health services in the province of Azuay. The sample included nurses, physicians, nursing assistants, administrative staff, administrative assistants, and other areas (age range ranged from 22 to 66 years, x̅ = 38.3 years and σ= 9). In analyzing the literature, 7 models were found and evaluated for the factor structure of the scale by exploratory analysis and confirmatory analysis. When examining the goodness-of-fit, the best-fitting model presented a trifactorial structure.
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Beck, A. T., y Emery, G. (1985). Anxiety disorders and phobias: A cognitive perspective. Basic Books.
Benítez-Molina, A., y Caballero-Badillo, M. C. (2017). Estudio psicométrico de las escalas de depresión, ansiedad y funcionalidad familiar en estudiantes de la Universidad Industrial de Santander. Acta Colombiana de Psicología, 20(1), 221-231. https://doi.org/10.14718/ACP.2017.20.1.11
Cicchetti, D. V. (1994). Guidelines, criteria, and rules of thumb for evaluating normed and standatized assesment instruments in psychology. Psychological Assessment, 6(4), 284-290. http://doi.org/1.1037/1040-359.6.4.284
Costello, A. B., & Osborne, J. (2005). Best Practices in Exploratory Factor Analysis: Four Recommendations for Getting the Most from Your Analysis. Practical Assessment Research & Evaluation, 10, 1-9. https://www.researchgate.net/publication/209835856_Best_Practices_in_Exploratory_Factor_Analysis_Four_Recommendations_for_Getting_the_Most_From_Your_Analysis
De La Ossa, S., Martínez, Y., Herazo, E., y Campo, A. (2009). Estudio de la consistencia interna y estructura factorial de tres versiones de la escala de Zung para ansiedad. Colombia Médica, 40(1), 71-77.
García-Morán, M. de C., y Gil-Lacruz, M. (2016). El estrés en el ámbito de los profesionales de la salud. Persona, 19(19), 11-30. https://doi.org/10.26439/persona2016.n019.968
Hernández-Pozo, M., Macías, D., Calleja, N., Cerezo, S., y del Valle Chauvet, C. (2008). Propiedades psicométricas del inventario Zung del estado de ansiedad con mexicanos. Psychologia: Avances de la Disciplina, 2(2), 19-46.
Hu, L., y Bentler, P. (1999). Cutoff criteria for fit indexes in covariance structure analysis: Conventional criteria versus new alternatives. Structural Equation Modeling: A Multidisciplinary Journal, 6, 1-55. https://doi.org/10.1080/10705519909540118
Jiménez, E., Fernández, Z., Broche, Y., León, J., Rodríguez, G., Rodríguez, R., y Pérez, B. (2021). Índices de capacidad funcional, ansiedad y depresión en una muestra de adultos mayores de Santa Clara. Novedades en Población, 17(33), 223-244.
Lang, P. J. (1984). Cognition in emotion: Concept and action. En C. Izard, J. Kagan, y R. Zajonc (Ed.), Emotions, cognition, and behaviour. Cambridge University Press.
Lazarus, R. S. (1991). Cognition and motivation in emotion. American Psychologist, 46(4), 352–367. https://doi.org/10.1037/0003-066X.46.4.352
Lorenzo-Seva U. (2022). SOLOMON: a method for splitting a sample into equivalent subsamples in factor analysis. Behavior Research Methods, 54(6), 2665–2677. https://doi.org/10.3758/s13428-021-01750-y
Olatunji, B. O., Deacon, B. J., Abramowitz, J. S., y Tolin, D. F. (2006). Dimensionality of somatic complaints: factor structure and psychometric properties of the Self-Rating Anxiety Scale. Journal of Anxiety Disorders, 20(5), 543–561. https://doi.org/10.1016/j.janxdis.2005.08.002
Organización Mundial de la Salud. (2019). Salud mental. https://www.who.int/es/news-room/fact-sheets/detail/mental-health-strengthening-our-response
Piqueras Rodríguez, J. A., Martínez González, A. E., Ramos Linares, V., Rivero Burón, R., García López, L. J., y Oblitas Guadalupe, L. A. (2008). Ansiedad, depresión y salud. Suma Psicológica, 15(1), 43–74.
Revelle, W., y Rocklin, T. (1979). Very Simple Structure—Alternative Procedure for Estimating the Optimal Number of Interpretable Factors. Multivariate Behavioral Research, 14, 403-414. https://doi.org/10.1207/s15327906mbr1404_2
Rojas Clavijo, S. (2019). Propiedades psicométricas de la Escala Autoaplicada de Zung para Ansiedad (Zung SAS) en población colombiana [Tesis de maestría, Universidad Iberoamericana]. Repositorio Ibero. https://repositorio.ibero.edu.co/handle/001/951
Smith, J. (2020). La interrelación entre ansiedad y miedo: un enfoque desde las teorías cognitivistas y del aprendizaje. Revista de Psicología Emocional, 15(3), 123–140. https://www.revistadepsicologiayeducacion.es/pdf/20231801.pdf
Tavakol, M., y Dennick, R. (2011). Making sense of Cronbach’s alpha. International Journal of Medical Education, 2, 53–55. https://doi.org/10.5116/ijme.4dfb.8dfd
Zung, W. W. (1971). A rating instrument for anxiety disorders. Psychosomatics, 12(6), 371–379. https://doi.org/10.1016/S0033-3182(71)71479-0
Zung, W. W. (1965). A Self-rating Depression Scale. Archives of General Psychiatry, 12, 63–70. https://doi.org/10.1001/archpsyc.1965.01720310065008
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