The aim of this study was to translate the Spiritual Involvement and Beliefs Scale into the Greek language and validate its psychometric properties in a sample of advanced cancer patients treated in a palliative care unit. The scale was translated into Greek with the “forward-backward” procedure. It was administered twice, with a 3-day interval, to 82 patients with advanced cancer. Patients completed the Spiritual Involvement and Beliefs Scale and the Greek Hospital Anxiety and Depression Scale. The scale had an overall Cronbach α of 0.89. Overall test-retest reliability was satisfactory at P < .0005. Satisfactory construct validity was supported between the Spiritual Involvement and Beliefs Scale subscales and Hospital Anxiety and Depression subscales. Interscale and interitem correlations were found satisfactory at P < .0005. These results support that the Spiritual Involvement and Beliefs Scale is an instrument with satisfactory psychometric properties and is a valid research tool for spirituality in advanced cancer patients.
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