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.