Translation, Adaptation, and Validation of the L’Échelle d’Interactions Infirmière-Patient-23 for the Portuguese Culture: The Multidimensional Nature of Nursing Care

Nursing care is based on the interaction between nurse and patient. The L’Échelle d’Interactions Infirmière-Patient-23 (EIIP-23) is used to evaluate and understand the perception of nurses about their interventions in the practice of care, to reach better health results. The present study aims to validate the questionnaire EIIP-23 to Portuguese, evaluating its psychometric properties. Methods: This is methodological research for the process of cross-cultural translation and adaptation. Results: The process of cross-cultural translation and adaptation were satisfactory. The committee of experts reached an agreement of more than 90% in the first evaluation for all the items. The internal consistency of the nurse-patient interaction scale 22-PT (NPIS-22-PT) was 0.864. Exploratory and confirmatory factor analyses were carried out in the NPIS-22-PT model, with three factors. The results show that the final factorial solution presents acceptable goodness of fit indexes and adequate convergent validity. Conclusion: The translated version produced a good quality psychometric evaluation, and can be considered a valid, trustworthy, and useful instrument to evaluate the nurse-patient interactions in Portugal. It showed acceptable reliability and validity in psychometric tests. In the context of nursing, the NPIS-22-PT is a relevant instrument