Translation, Cultural Adaptation, and Psychometric Validation of the European Portuguese Version of the Iceland-Expressive Family Functioning Questionnaire (ICE-EFFQ)

• Published in: Journal of Family Nursing
• Main Authors: Gouveia, Maria do Carmo Lemos Vieira, Sveinbjarnardottir, Eydis Kristin, Rodrigues, Maria João Barreira, Silva, Rita Maria Lemos Baptista, Baptista, Márcia Sílvia, Henriques, Maria Adriana Pereira
• Other Authors: Nursing Research, Innovation and Development Centre of Lisbon, European Science Foundation Research Networking Programme ‘REFLECTION’, Fundação para a Ciência e a Tecnologia
• Format: Article in Journal/Newspaper
• Language: English
• Published: SAGE Publications 2023
• Subjects: Family Practice; Community and Home Care; Iceland
• Online Access: http://dx.doi.org/10.1177/10748407231205038; http://journals.sagepub.com/doi/pdf/10.1177/10748407231205038; http://journals.sagepub.com/doi/full-xml/10.1177/10748407231205038

A family’s experience of mental illness can change the family’s functioning. In clinical contexts, valid and reliable instruments that assess family functioning, therapeutic changes, and the effects of family nursing interventions are needed. This study focuses on the linguistic and cultural adaptation of the Iceland-Expressive Family Functioning Questionnaire (ICE-EFFQ) to European Portuguese and examines the psychometric properties of this instrument. A non-random sample of 121 Portuguese depressed patients and their relatives completed the questionnaire. Principal components analysis extracted 4 factors, explaining 55.58% of the total variance. Confirmatory factor analysis revealed acceptable adjustment quality indices. Cronbach’s alpha coefficient was adequate for the global scale α = .86 and for the 4 subscales: communication α = .79, expression of emotions α = .68, problem-solving α = .71, and cooperation α = .61. The Portuguese version of ICE-EFFQ is a sensitive, valid, and reliable instrument for use with Portuguese families with adult members with depression and can be valuable in assessing these families’ expressive functioning, before and after intervention.