Proces opracowywania i walidacji skali [Scale development and scale validation process] Asha Thomas (Department of Operations Research and Business Intelligence, PWr, Wrocław) This research adopts a rigorous multi-study, multi-method, and multi-sample approach to develop and validate a multi-dimensional scale that effectively captures the nuances of student well-being (SWB). This process encompassed five methodical stages: generation, purification, refinement, validation, and generalizability. The resulting SWB scale, encompassing five key dimensions of well-being - academic, financial, physical, psychological resilience, and relational - provides a sophisticated tool for measuring and improving SWB in higher education contexts.