Download or read book Discovering Whether Programs Work written by Laura Irwin Langbein and published by . This book was released on 1980 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: Here is a practical guide to the statistical methods used to determine if public policies are achieving their intended goals. Special emphasis is placed on specifying the objectives of a given public program in order to select the most effective research design. The book provides a complete outline of the principles of evaluation research, and the advantages and disadvantages of each method are discussed with examples from the world of deadlines, budgets, and self-interest (from cover).