Adaptation of the Standardized Patient Evaluation of Eye Dryness Questionnaire to European Portuguese (SPEED-Vp) in a Non-Clinical Sample

Authors

  • Ana Lúcia Sanches Universidade da Beira Interior. Covilhã. https://orcid.org/0000-0003-2295-9178
  • Sara Gisela Leite Universidade da Beira Interior. Covilhã. https://orcid.org/0000-0002-2952-214X
  • António Nunes Universidade da Beira Interior. Covilhã; NECE - Research Center for Business Sciences. Management and Economics Department. University of Beira Interior. Covilhã.
  • Miguel Caixinha Universidade da Beira Interior. Covilhã; CEMMPRE - Centre for Mechanical Engineering, Materials and Processes. University of Coimbra. Coimbra.
  • Pedro Monteiro Universidade da Beira Interior. Covilhã; CICS - Centro de Investigação em Ciências da Saúde. Universidade da Beira Interior. Covilhã; CCECV - Centro Clínico e Experimental em Ciências da Visão. Universidade da Beira Interior. Covilhã.
  • Amélia Nunes Universidade da Beira Interior. Covilhã; CICS - Centro de Investigação em Ciências da Saúde. Universidade da Beira Interior. Covilhã; CCECV - Centro Clínico e Experimental em Ciências da Visão. Universidade da Beira Interior. Covilhã. https://orcid.org/0000-0002-5001-3534

DOI:

https://doi.org/10.20344/amp.18557

Keywords:

Dry Eye Syndromes, Language, Portugal, Psychometrics, Reproducibility of Results, Surveys and Questionnaires

Abstract

Introduction: The aim of this study was to translate and adapt the Standardized Patient Evaluation of Eye Dryness questionnaire to European Portuguese, as well as assess the psychometric performance of the translated version, including repeatability and agreement.
Material and Methods: The original Standardized Patient Evaluation of Eye Dryness - SPEED questionnaire was translated and adapted to the Portuguese cultural context by following a scientifically valid methodology commonly used in the process of adapting tools to other cultures and languages.
The questionnaire resulting from the translation into the new language was subject to a pre-test where the comments of the participants were written and considered for the final version of the questionnaire. For the scale validation of the final version of the translated questionnaire, 89 subjects from a non-clinical population, aged 18 to 84 years, were asked to answer the questionnaire (61% were women). One week later, the same questionnaire was repeated by 63 subjects. The internal reliability of the questionnaire was analyzed by Cronbach’s alpha, temporal stability by test-retest, and analysis of agreement between measures by the Bland-Altman method.
Results: The internal consistency of the translated questionnaire, SPEED-vP was high (α = 0.871) and all questionnaire items contributed to an increase in this index. This consistency was also confirmed to be high in the retest (α = 0.856) and when the sample was stratified by age and sex. The SPEED-complete questionnaire also showed high consistency (α = 0.88). The repeatability of the instrument was high (ICC 0.933; 95% CI: 0.899 and 0.960) and the Bland-Altman plot revealed good agreement between measures.
Conclusion: The Standardized Patient Evaluation of Eye Dryness in Portuguese (SPEED-vP) showed good psychometric properties for the Portuguese population. Therefore, the translated version of the SPEED-vP questionnaire could be used to quantitatively measure the presence of dry eye symptoms in the Portuguese population.

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References

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Published

2023-01-11

How to Cite

1.
Sanches AL, Leite SG, Nunes A, Caixinha M, Monteiro P, Nunes A. Adaptation of the Standardized Patient Evaluation of Eye Dryness Questionnaire to European Portuguese (SPEED-Vp) in a Non-Clinical Sample. Acta Med Port [Internet]. 2023 Jan. 11 [cited 2024 May 28];36(11):714-22. Available from: https://www.actamedicaportuguesa.com/revista/index.php/amp/article/view/18557

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Original