A comprehensive statistics text for graduate students Explaining Psychological Statistics, Second Edition successfully bridges the gap between statistics and research methods courses by incorporating research methods throughout the text. In a clear and engaging manner, this comprehensive text covers both introductory and advanced topics in statistics, including the concepts (and limitations) of hypothesis testing; linear correlation and regression; the t-test and matched t-test; basic analysis of variance in one- and two-way designs; and repeated measures ANOVA.This new edition also features: Multiple regression, the regression approach to one- and two-way ANOVA, and ANCOVA Advanced topics, such as the intraclass correlation, the analysis of Latin-square designs, and the analysis of trend components Relevant research designs for numerous areas of psychological research