This easy-to-read applied statistics text aims to provide students with a working knowledge of key concepts and formulae through a step-by-step approach to solving the kind of research problems likely to be encountered in undergraduate psychology courses. Problems interspersed throughout each chapter encourage students to keep a check on their understanding of the material as they go along. Non-parametric statistical tests are presented along with comparable parametric statistical tests as a way of emphasizing that scale of measurement, population characteristics, and sampling procedures are important to data analysis and interpretation. Features of the book are that the text is geared specifically to psychology students; that it offers progress assessments and review exercises; and that non-parametric and comparable parametric tests are covered in the same chapter