With the emerging international consensus toward community care of the mentally ill, there comes a growing need for meaningful evaluation of services. Redressing the current lack of guidance this book describes how to do mental health service research. Contributors comprehensively review the most recent developments in research design, method and measurement at the level of both whole service systems and individual programs within mental health services. Practical descriptions of comprehensive evaluation projects illustrate each issue and many chapters examine important earlier advances in effective service knowledge as well as future work that will further develop our understanding of meeting patient requirements.