90-Day Cycles are a disciplined and structured form of inquiry designed to produce and test knowledge syntheses, prototyped processes, or products in support of improvement work. With any type of activity, organizations inevitably encounter roadblocks to improving performance and outcomes. These barriers might include intractable problems at…

This manual is a technical resource for helping drug treatment program directors decide whether to do a follow-up of a client population and, if so, how to do one. Each chapter was written by a particular set of authors. However, the points contained in the chapters had to receive the general agreement of a committee whose membership included…