Reviewing model parameters TSD A guide to identifying, selecting and using evidence to inform the model structure and its parameters, including recommendations for practice and reporting. Off TSD 13: Identifying and reviewing evidence to inform the conceptualisation and population of cost-effectiveness models (PDF, 376KB) TSD 13 one-page summary (PDF, 2.7MB) Related information Technical support documents A world top-100 university We're a world top-100 university renowned for the excellence, impact and distinctiveness of our research-led learning and teaching. About the University