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Multidimensional Scale of Perceived Social Support (MSPSS) in cancer patients: psychometric properties and measurement invariance

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Background: The aim of this study was to evaluate the psychometric properties, convergent validity, and factorial invariance of the Multidimensional Scale of Perceived Social Support (MSPSS) in cancer patients. Method: Confi rmatory factor analysis (CFA) was conducted to explore the scale's dimensionality and test for strong measurement invariance across sex and age in a cross-sectional, multicenter, prospective study. Patients completed the MSPSS and Satisfaction with Life Scale (SWLS). Results: A total of 925 consecutive patients were recruited in 13 hospitals between July 2015 and December 2018. The CFA indicated that the original three factor model was replicated in patients with cancer. The results of the multi-group CFA revealed a strong invariance according to sex and age. The Spanish version of the MSPSS had high estimated reliability with values exceeding .90. The simple sum of the items of each scale was a good indicator of oncology patients' perceived social support. The three MSPSS subscales correlated signifi cantly with the SWLS. Women scored higher on social support by friends than men. Conclusion: The Spanish version of the MSPSS proved to be a valid, reliable instrument to assess perceived social support in cancer patients.

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Facultad de Psicología de la Universidad de Oviedo y el Colegio Oficial de Psicólogos del Principado de Asturias

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Articles publicats en revistes (Psicologia Clínica i Psicobiologia)

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Multidimensional Scale of Perceived Social Support (MSPSS) in cancer patients: psychometric properties and measurement invariance