This second edition of this text guides the novice user through the process of entering and analysing data using one of the most popular data and statistics software packages SPSS. The authors assume only the most basic of knowledge of a Windows package, remind students of basic issues regarding design and statistics, and proceed gently through all the major quantitative statistical techniques used in psychology, from introductory up to advanced level. Students are introduced to the rationale and use of each test and provided with clearly annotated examples of the output produced by SPSS. In this way, they are shown how to choose, perform and report the statistical analysis of their own data. The second edition has been expanded to include coverage of more advanced statistical tests, including ANCOVA, factor analysis, logistic repression and discriminant analysis.