Clinically oriented professionals and students need to understand and evaluate the research and statistics in professional articles, especially given today's emphasis on evidence-based practice. This book consists of a series of 33 previously published articles from the Journal of the American Academy of Child and Adolescent Psychiatry, as well as an introduction and a conclusion on how to analyze and evaluate research articles. The book demonstrates how the research approach and design help determine the appropriate statistical analysis. Understanding and Evaluating Research features: Short, independent, chapters that can be read in any order. A guide to selecting an appropriate statistic. An emphasis on effects sizes including measures of risk potency. Numerous cross-disciplinary examples to illustrate the material. Methods to help determine practical and clinical significance and their relation to meta-analysis and evidence-based practice. A chapter on determining levels of evidence. This book is intended for practitioners and students in psychology, education, counseling, mental and allied health, nursing, and medicine, and as a text for courses on research methods and statistics. Exposure to research and statistics at the master's level is assumed.