This book was written to fulfill a need of potential consumers of research, as well as eventual researchers. Although research design courses emphasize designs and appropriate statistical analyses, the stress is on conducting good designs. As a result, students may be able to apply their knowledge of originating research. But most consumers of research read articles based on original research and may be unable to apply that same knowledge to evaluating the article in terms of soundness of the design and appropriateness of the statistical analyses. Such an evaluation is crucial for a practitioner who might consider adapting methods based on results to his or her practice, whether it be education, sociology, psychology, medicine, dentistry or any other field. The goal of this book is to fill the void.