Psychometric properties of the Portuguese version of the European Health Literacy Survey Questionnaire (HLS-EU-PT-Q16) in nursing students
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DOI:
https://doi.org/10.31211/rpics.2026.12.1.415Keywords:
Confirmatory factor analysis, Health literacy, Nursing students, Psychometric properties, ValidationAbstract
Context: Health literacy is a social determinant of health and a public health priority, requiring credible, rigorous, and context-appropriate measurement. Objective: To examine the psychometric properties — structural validity, reliability, convergent validity, and discriminant validity — of the Portuguese version of the European Health Literacy Survey Questionnaire (HLS-EU-PT-Q16) in a sample of nursing students. Method: A methodological study was conducted with 476 undergraduate nursing students from a higher education institution in the central region of mainland Portugal. Data were collected in person in classrooms using Google Forms, with electronic informed consent. Results: Exploratory factor analysis yielded a three-factor solution that diverged from the original theoretical structure, suggesting an empirical reconfiguration of the health literacy domains in this sample. Confirmatory factor analyses indicated that the correlated three-factor models (both theoretically and empirically derived) provided a superior fit to the data relative to the unifactorial model. All models displayed highly satisfactory reliability. Convergent validity emerged as the main psychometric weakness, whereas discriminant validity, assessed through the HTMT criterion, was satisfactory in both three-factor models. Conclusions: The findings support the multidimensionality of health literacy, with the three-factor models outperforming the unifactorial model. In the Portuguese higher education context, the dimensions of health literacy appear to display strong functional and conceptual integration without compromising the empirical independence of the underlying constructs.
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Bergman, L., Nilsson, U., Dahlberg, K., Jaensson, M., & Wångdahl, J. (2023). Validity and reliability of the Arabic version of the HLS-EU-Q16 and HLS-EU-Q6 questionnaires. BMC Public Health 23, Artigo 304. https://doi.org/10.1186/s12889-023-15226-5
Brown, T. A. (2015). Confirmatory factor analysis for applied research (2.ª ed.). The Guilford Press.
Burnham, K. P., & Anderson, D. R. (2004). Multimodel inference: Understanding AIC and BIC in model selection. Sociological Methods & Research, 33(2), 261–304. https://doi.org/10.1177/0049124104268644
Cohen, J. (1988). Statistical power analysis for the behavioral sciences (2.ª ed.). Lawrence Erlbaum Associates.
Coman, M. A., Forray, A. I., Van den Broucke, S., & Chereches, R. M. (2022). Measuring health literacy in Romania: Validation of the HLS-EU-Q16 survey questionnaire. International Journal of Public Health, 67, Artigo 1604272. https://doi.org/10.3389/ijph.2022.1604272
Doak, C. C., Doak, L. G., & Root J. H. (1985). Teaching patients with low literacy skills. J. B. Lippincott.
Dsouza, J. P., Van den Broucke, S., & Pattanshetty, S. (2021). Validity and reliability of the Indian Version of the HLS-EU-Q16 questionnaire. International Journal of Environmental Research and Public Health, 18(2), Artigo 495. https://doi.org/10.3390/ijerph18020495
Fabrigar, L. R., Wegener, D. T., MacCallum, R. C., & Strahan, E. J. (1999). Evaluating the use of exploratory factor analysis in psychological research. Psychological Methods, 4(3), 272–299. https://doi.org/10.1037/1082-989X.4.3.272
Fornell, C., & Larcker, D. F. (1981). Evaluating structural equation models with unobservable variables and measurement error. Journal of Marketing Research, 18(1), 39–50. https://doi.org/10.2307/3151312
Henseler, J., Ringle, C. M., & Sarstedt, M. (2015). A new criterion for assessing discriminant validity in variance-based structural equation modeling. Journal of the Academy of Marketing Science, 43(1), 115–135. https://doi.org/10.1007/s11747-014-0403-8
Hu, L., & Bentler, P. M. (1999). Cutoff criteria for fit indexes in covariance structure analysis: Conventional criteria versus new alternatives. Structural Equation Modeling: A Multidisciplinary Journal, 6(1), 1–55. https://doi.org/10.1080/10705519909540118
Kline, R. B. (2023). Principles and practice of structural equation modeling (5.ª ed.). The Guilford Press.
Liu, X., Cao, P., Lai, X., Wen, J., & Yang, Y. (2023). Assessing essential unidimensionality of scales and structural coefficient bias. Educational and Psychological Measurement, 83(1), 28–47. https://doi.org/10.1177/00131644221075580
Lorini, C., Lastrucci, V., Mantwill, S., Vettori, V., Bonaccorsi, G., & Florence Health Literacy Research Group. (2019). Measuring health literacy in Italy: A validation study of the HLS-EU-Q16 and of the HLS-EU-Q6 in Italian language, conducted in Florence and its surroundings. Annali dell'Istituto Superiore di Sanita, 55(1), 10–18. https://doi.org/10.4415/ANN_19_01_04
Loureiro, L. M., Mendes, A. M., Barroso, T. M., Santos, J. C., Oliveira, R. A., & Ferreira, R. O. (2012). Literacia em saúde mental de adolescentes e jovens: Conceitos e desafios. Revista de Enfermagem Referência, 3(6), 157–166. https://doi.org/10.12707/RIII11112
Loureiro, L. (2024). About this thing we call mental health literacy. Journal of Nursing Referência, 6(3), 1–8. https://doi.org/10.12707/RVI24.19.34548
MacCallum, R. C., Roznowski, M., & Necowitz, L. B. (1992). Model modifications in covariance structure analysis: The problem of capitalization on chance. Psychological Bulletin, 111(3), 490–504. https://doi.org/10.1037/0033-2909.111.3.490
Marsh, H. W., Hau, K.-T., & Wen, Z. (2004). In search of golden rules: Comment on hypothesis-testing approaches to setting cutoff values for fit indexes and dangers in overgeneralizing Hu and Bentler’s (1999) findings. Structural Equation Modeling: A Multidisciplinary Journal, 11(3), 320–341. https://doi.org/10.1207/s15328007sem1103_2
Marôco, J. (2021). Análise de equações estruturais: Fundamentos teóricos, software & aplicações. ReportNumber.
Michou, M., Costarelli, V. (2022). Validity and reliability of the European Health Literacy Survey Questionnaire (HLS-EU-Q16) in the Greek language. Mediterranean Journal of Nutrition and Metabolism 15(2), 285–294. https://doi.org/10.3233/MNM-211538
Niedorys, B., Chrzan-Rodak, A., & Ślusarska, B. (2020). Health Literacy – A review of research using the European Health Literacy Questionnaire (HLS-EU-Q16) in 2010-2018. Pielęgniarstwo XXI Wieku / Nursing in the 21st Century, 19(1[70]), 29–41. https://doi.org/10.2478/pielxxiw-2020-0001
Nutbeam, D. (2000). Health literacy as a public health goal: A challenge for contemporary health education and communication strategies into the 21st century. Health Promotion International, 15(3), 259–267. https://doi.org/10.1093/heapro/15.3.259
Nutbeam, D., Wise, M., Bauman, A., Harris, E., & Leeder, S. (1993). Goals and targets for Australia’s health in the year 2000 and beyond [Report]. Australian Government Publishing Service.
Pedro, A. R., Amaral, O., & Escoval, A. (2016). Literacia em saúde, dos dados à ação: Tradução, validação e aplicação do European Health Literacy Survey em Portugal. Revista Portuguesa de Saúde Pública, 34(3), 259–275. https://doi.org/10.1016/j.rpsp.2016.07.002
Pedro, A. R., Raposo, B., Luís, L., Amaral, O., Escoval, A., & Simões Dias, S. (2023). Portuguese Version of the HLS-EU-Q6 and HLS-EU-Q16 questionnaire: Psychometric properties. International Journal of Environmental Research and Public Health, 20(4), Artigo 2892. https://doi.org/10.3390/ijerph20042892
Pelikan, J. M., Ganahl, K., Van den Broucke, S., & Sørensen, K. (2019). Measuring health literacy in Europe: Introducing the European Health Literacy Survey Questionnaire (HLS-EU-Q). Em O. Okan, U. Bauer, D. Levin-Zamir, P. Pinheiro, & K. Sørensen (Eds.), International handbook of health literacy: Research, practice and policy across the lifespan (pp. 115–138). Policy Press. https://doi.org/10.51952/9781447344520.ch008
Reed, G. F., Lynn, F., & Meade, B. D. (2002). Use of coefficient of variation in assessing variability of quantitative assays. Clinical and Diagnostic Laboratory Immunology, 9(6), 1235–1239. https://doi.org/10.1128/CDLI.9.6.1235-1239.2002
Rouquette, A., Rigal, L., Mancini, J., Guillemin, F., Van den Broucke, S., Allaire, C., Azogui-Levy, S., Ringa, V., & Hassler, C. (2022). Health literacy throughout adolescence: Invariance and validity study of three measurement scales in the general population. Patient Education and Counseling, 105(4), 996–1003. https://doi.org/10.1016/j.pec.2021.07.044
Simonds, S. K. (1974). Health education as social policy. Health Education Monographs, 2(1), 1–10. https://doi.org/10.1177/10901981740020s102
Sørensen, K. (2019). Defining health literacy: Exploring differences and commonalities. Em O. Okan, U. Bauer, D. Levin-Zamir, P. Pinheiro, & K. Sørensen (Eds.), International handbook of health literacy: Research, practice and policy across the lifespan (pp. 5–20). Policy Press. https://doi.org/10.56687/9781447344520-004
Sørensen, K., Van den Broucke, S., Fullam, J., Doyle, G., Pelikan, J., Slonska, Z., Brand, H., & (HLS-EU) Consortium Health Literacy Project European. (2012). Health literacy and public health: A systematic review and integration of definitions and models. BMC Public Health, 12(1), Artigo 80. https://doi.org/10.1186/1471-2458-12-80
Sørensen, K., Van den Broucke, S., Pelikan, J. M., Fullam, J., Doyle, G., Slonska, Z., Kondilis, B., Stoffels, V., Osborne, R. H., & Brand, H. (2013). Measuring health literacy in populations: Illuminating the design and development process of the European Health Literacy Survey Questionnaire (HLS-EU-Q). BMC Public Health, 13(1), Artigo 948. https://doi.org/10.1186/1471-2458-13-948
Watkins, M. W. (2018). Exploratory factor analysis: A guide to best practice. Journal of Black Psychology, 44(3), 219–246. https://doi.org/10.1177/0095798418771807
Zanini, D. S., Peixoto, E. M., de Andrade, J. M., Fernandes, I. A., & da Silva, M. P. P. (2023). European Health Literacy Survey Questionnaire Short Form (HLS-Q12): Adaptation and evidence of validity for the Brazilian context. Psicologia: Reflexão e Crítica, 36(25), Artigo 25. https://doi.org/10.1186/s41155-023-00263-1
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