The Obsessive-Compulsive Inventory-Revised (OCI-R): Translation and Validation of the European Portuguese Version

Authors

  • Gonçalo Varela Cunha Life and Health Sciences Research Institute (ICVS). School of Medicine. University of Minho. Braga. ICVS/3B’s, PT Government Associate Laboratory. Braga/Guimarães.
  • Pedro Silva Moreira Life and Health Sciences Research Institute (ICVS). School of Medicine. University of Minho. Braga. ICVS/3B’s, PT Government Associate Laboratory. Braga/Guimarães. Psychological Neuroscience Lab – CIPsi. School of Psychology. University of Minho. Braga.
  • Mafalda Machado Sousa Life and Health Sciences Research Institute (ICVS). School of Medicine. University of Minho. Braga. ICVS/3B’s, PT Government Associate Laboratory. Braga/Guimarães.
  • Teresa Castanho Life and Health Sciences Research Institute (ICVS). School of Medicine. University of Minho. Braga. ICVS/3B’s, PT Government Associate Laboratory. Braga/Guimarães.
  • Maria Picó-Pérez Life and Health Sciences Research Institute (ICVS). School of Medicine. University of Minho. Braga. ICVS/3B’s, PT Government Associate Laboratory. Braga/Guimarães.
  • Sónia Ferreira Life and Health Sciences Research Institute (ICVS). School of Medicine. University of Minho. Braga. ICVS/3B’s, PT Government Associate Laboratory. Braga/Guimarães.
  • Pedro Morgado Life and Health Sciences Research Institute (ICVS). School of Medicine. University of Minho. Braga. ICVS/3B’s, PT Government Associate Laboratory. Braga/Guimarães. 2CA-Clinical Academic Center. Hospital de Braga. Braga. https://orcid.org/0000-0003-3880-3258

DOI:

https://doi.org/10.20344/amp.16452

Keywords:

Obsessive-Compulsive Disorder, Portugal, Psychiatric Status Rating Scales, Psychometrics, Reproducibility of Results, Translating

Abstract

Introduction: The Obsessive-Compulsive Inventory-Revised has been developed to evaluate the severity of obsessive-compulsive symptoms in both clinical and non-clinical individuals. The aim of this study was to evaluate the psychometric properties of the Portuguese version.
Material and Methods: This questionnaire was applied to 90 people with obsessive-compulsive disorder and 246 without a known mental illness. In addition to this clinical evaluation instrument, participants completed other clinical assessment scales that helped characterize the two study groups.
Results: Given the objective of this study, to evaluate the structure by six factors, a confirmatory factor analysis was performed [patient group: χ2(120, n = 90) = 205.779, p < 0.01; CFI = 0.916; GFI = 0.814; RMSEA = 0.0890. Control group: χ2(120, n = 246) = 224.762, p < 0.01; CFI = 0.938; GFI = 0.904; RMSEA = 0.060]. To assess the internal consistency of the scale, Cronbach’s alpha was determined (patient group: α = 0.913; control group: α = 0.888). Convergent validity was tested by determining the Spearman correlation between the scores obtained in the Obsessive-Compulsive Inventory-Revised and Y-BOCS in the patient group (r = 0.651; p < 0.01).
Conclusion: Obsessive-Compulsive Inventory-Revised has proved to be a consistent, valid, and reliable instrument with good psychometric properties to determine the severity of obsessive-compulsive symptoms in the Portuguese population.

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Published

2022-09-16

How to Cite

1.
Varela Cunha G, Silva Moreira P, Machado Sousa M, Castanho T, Picó-Pérez M, Ferreira S, Morgado P. The Obsessive-Compulsive Inventory-Revised (OCI-R): Translation and Validation of the European Portuguese Version. Acta Med Port [Internet]. 2022 Sep. 16 [cited 2024 Apr. 22];36(3):174-82. Available from: https://www.actamedicaportuguesa.com/revista/index.php/amp/article/view/16452

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