An engaging readable, and well-illustrated account of the current art of combining information from several studies. -- Frederick Mosteller, Harvard University A much-needed book--interesting, readable, attractively presented, practical. -- Julian C. Stanley, The Johns Hopkins University Light and Pillemer show an exemplary, nondoctrinaire catholic that I much admire, as well as a willingness to get deep into their, our, and others' experiences as reviewers in order to learn the lessons these experiences teach. Their book is therefore more comprehensive and practical than most books on methods. -- Thomas D. Cook, Northwestern University Astute and wonderfully lucid, Summing Up will be a treasure for inexperienced researchers and contains messages for many experienced ones as well. The book goes beyond techniques for boiling down multiple studies to a single summary "effect size" showing how qualitative information from the original studies improves interpretation. -- Lee J. Cronbach, Stanford University

How can a scientist or policy analyst summarize and evaluate what is already known about a particular topic? This book offers practical guidance.

The amount and diversity of information generated by academic and policy researchers in the contemporary world is staggering. How is an investigator to cope with the tens or even hundreds of studies on a particular problem? How can conflicting findings be reconciled? Richard Light and David Pillemer have developed both general guidelines and step-by-step procedures that can be used to synthesize existing data. They show how to apply quantitative methods, including the newest statistical procedures and simple graphical displays, to evaluate a mass of studies and combine separate data sets. At the same time, they insist on the value of qualitative information, of asking the right questions, and of considering the context in which research is conducted. The authors use exemplary reviews in education, psychology, health, and the policy sciences to illustrate their suggestions.

Written in nontechnical language and addressed to the beginning researcher as well as to the practicing professional, Summing Up will set a new standard for valid research reviews and is likely to become a methodological classic.