Phase 1: Measuring Healthcare Professionals attitudes towards patients with COPD  Inclusion Criteria:  Willing and able to provide informed consent for participation in the research A United Kingdom healthcare professional A healthcare professional who has the capability to refer patients with COPD to Pulmonary Rehabilitation services Male or female, aged 18+ years Able to communicate in written and spoken English  Exclusion Criteria:  Unable to provide valid informed consent Healthcare professionals practising outside of the United Kingdom A healthcare professional who does not refer patients with COPD to Pulmonary Rehabilitation services Aged <18 years Unable to understand written English as the Implicit Association Test is currently only available in English  Phase 2: A Pulmonary Rehabilitation shared decision making intervention Patients:-  Inclusion Criteria:  Willing and able to give informed consent for participation in the research Male or female, aged 40+years A confirmed diagnosis of COPD, post bronchodilator Forced Expiratory Volume 1/Full Vital Capacity ratio <70% Eligible for attendance at a University Hospitals of Leicester Pulmonary Rehabilitation assessment Able to communicate in written and spoken English  Exclusion Criteria:  Unable to provide valid informed consent Aged <40years Primary diagnosis is another chronic respiratory condition. Ineligible for attendance at a University Hospitals of Leicester PR assessment (e.g. significant comorbidity which limits exercise training Unable to understand written English as the research information and shared decision making intervention is currently only available in English  Healthcare professionals:-  Inclusion Criteria:  A participant who is willing and able to give informed consent for participation in the research A healthcare professional directly involved in the provision of the shared decision making intervention (e.g. a Pulmonary Rehabilitation specialist) Male or female, aged 18+ years  Exclusion criteria:-  A participant who is unable to provide valid informed consent A healthcare professional not directly involved in the provision of the shared decision making intervention Aged <18 years