This "What Works Clearinghouse Procedures and Standards Handbook (Version 3.0)" provides a detailed description of the standards and procedures of the What Works Clearinghouse (WWC). The remaining chapters of this Handbook are organized to take the reader through the basic steps that the WWC uses to develop a review protocol, identify…

In a secondary analysis of the Abrams and Siegel evaluation of the Transcendental Meditation program at Folsom prison, experimental groups fared better than control groups, although the treatment explains only a small proportion of the variance. (Author)