The international phase 4 validation study of the EORTC QLQ-SWB32: A stand-alone measure of spiritual well-being for people receiving palliative care for cancer

The EORTC Quality of Life Group has just completed the final phase (field‐testing and validation) of an international project to develop a stand‐alone measure of spiritual well‐being (SWB) for palliative cancer patients. Participants (n = 451)—from 14 countries on four continents; 54% female; 188 Christian; 50 Muslim; 156 with no religion—completed a provisional 36‐item measure of SWB plus the EORTC QLQ‐C15‐PAL (PAL), then took part in a structured debriefing interview. All items showed good score distribution across response categories. We assessed scale structure using principal component analysis and Rasch analysis, and explored construct validity, and convergent/divergent validity with …