Description:An overview of the range of approaches to evaluation, this book is aimed at those researchers who need to know the strengths and weaknesses of the different approaches. It describes principles, concepts and methods for evaluating health treatments, services, policies and organizational interventions. The book adopts an even-handed and accessible approach to the many different evaluation paradigms and methods. Its practical, multidisciplinary approach shows how to ensure that evaluation results in action. It emphasizes the increasingly important role that evaluation plays in everyday clinical, managerial and policymaking work.