The overarching goal of the Health Outcomes Collaboration (HOC) is to improve the health outcomes of patients and the experience of care they receive from their health care treatments. To assess this it may involve health practitioners and health services using health outcome-related clinical indicators and performance measures but it may also include the use of clinical rating scales and patient reported outcomes and experience measures (PROMs and PREMs). The Health Outcomes Collaboration provides consultancy advice to health practitioners, health services and systems concerning the selection and use of these health outcome measures. We also provide training workshops concerning the health outcomes approach... There are a myriad of measures to assess patient reported health outcomes and experience. What criteria do we use to assess whether this is the best measure to assess the outcomes for our particular application? The Health Outcomes Collaboration can provide advice and assist..