Ribeiro Agostinho, PaulaMendes Gaspar, Maria FilomenaPotra, Teresa2022-02-012022-02-012021-10http://hdl.handle.net/10400.26/39143Nursing care is based on the interaction between nurse and patient. The L’Échelled’Interactions Infirmière-Patient-23 (EIIP-23) is used to evaluate and understand the perceptionof nurses about their interventions in the practice of care, to reach better health results. The presentstudy aims to validate the questionnaire EIIP-23 to Portuguese, evaluating its psychometric prop-erties. Methods: This is methodological research for the process of cross-cultural translation andadaptation. Results: The process of cross-cultural translation and adaptation were satisfactory. Thecommittee of experts reached an agreement of more than 90% in the first evaluation for all theitems. 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 threefactors. The results show that the final factorial solution presents acceptable goodness of fit indexesand adequate convergent validity. Conclusion: The translated version produced a good qualitypsychometric evaluation, and can be considered a valid, trustworthy, and useful instrument toevaluate the nurse-patient interactions in Portugal. It showed acceptable reliability and validity inpsychometric tests. In the context of nursing, the NPIS-22-PT is a relevant instrumentengenfermagem clínicaAvaliação de enfermagemEstudos de validaçãoPropriedades psicometricasjournal articlehttps://doi.org/10.3390/ijerph182010791