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Title: Psychometric properties and factorial analysis of invariance of the Satisfaction with Life Scale (SWLS) in cancer patients
Author: Lorenzo Seva, Urbano
Calderón Garrido, Caterina
Ferrando Piera, Pere Joan
Muñoz, Maria del Mar
Beato, Carmen
Ghanem, Ismael
Castelo, Beatriz
Carmona Bayonas, Alberto
Hernández San Gil, Raquel
Jiménez Fonseca, Paula
Keywords: Càncer
Satisfacció dels pacients
Patient satisfaction
Issue Date: 1-Jan-2019
Publisher: Springer Science + Business Media
Abstract: Purpose The purpose of this study was to assess the psychometric properties of the Satisfaction with Life Scale (SWLS), evaluate the measurement invariance with respect to sex, age, and tumor location, as well as analyze associations between life satisfaction and socio-demographic and clinical variables among individuals with resected, non-advanced cancer. Methods A confirmatory factor analysis was conducted to explore the dimensionality of the scale and test invariance across gender, age, and tumor localization in a prospective, multicenter cohort of 713 patients who completed the following scales: SWLS, Health-related Quality of Life Questionnaire (EORTC QLQ-C30), Brief Symptom Inventory (BSI-18). Results Confirmatory factor analysis results indicated that the SWLS is an essentially unidimensional instrument, providing accurate scores: both McDonald's omega and Cronbach's alpha estimates were 0.91. Strong measurement invariance was found to hold across gender, age, and tumor localization. Low satisfaction with life was associated with psychological symptoms (anxiety, depression, and somatization), and decreased quality of life (malfunction, symptoms, poor global QoL). Conclusion The SWLS is a reliable, valid satisfaction with life measurement among people with cancer and should be recommended as an indicator of psychological adjustment in oncological patients.
Note: Versió postprint del document publicat a:
It is part of: Quality of Life Research, 2019, vol. 28, num. 5, p. 1255-1264
Related resource:
ISSN: 0962-9343
Appears in Collections:Articles publicats en revistes (Psicologia Clínica i Psicobiologia)

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