This research, carried out at the specialized cardiorespiratory rehabilitation unit of the Don Gnocchi Foundation in Milan, delves into the influence of expectations on individuals living with Chronic Obstructive Pulmonary Disease (COPD). The primary objective is to craft and validate a fresh assessment tool to gauge these expectations. Moreover, the questionnaire is reintroduced to patients after a month, during which additional data, as detailed in the corresponding section, are gathered.