Statistics in Plain English, 2/e provides a brief, simple overview of statistics to help readers gain a better understanding of how statistics work and how to interpret them correctly. It presents brief explanations of statistical concepts and techniques in simple, everyday language. Each self-contained chapter consists of three sections. The first describes the statistic, including how it is used and what information it provides. The second section reviews how it works, how to calculate the formula, the strengths and weaknesses of the technique, and the conditions needed for its use. The final section provides examples that use and interpret the statistic. A glossary of terms and symbols is also included. New features in the second edition include:

*An interactive CD with Power point presentations and problems for each chapter including an overview of the problem's solution;

*New chapters on basic research concepts including sampling, definitions of different types of variables, and basic research designs and on nonparametric statistics including the chi square test of independence;

*More graphs and more precise descriptions of each statistic; and

*A discussion of confidence intervals in the chapter on statistical significance and effect size. This brief paperback is an ideal supplement for statistics, research methods, courses that use statistics, or as a handy reference tool to refresh one's memory about key concepts. The actual research examples are from psychology, education, and other social and behavioral sciences.