An exploration of research methods in physical activity. This fourth edition presents updated information in text, figures and tables. Revisions include additional information on evaluating data and statistical power, the incorporation of multi-variate procedures and new chapters on non-parametric techniques and epidemiology. It covers a broader variety of disciplines including exercise science, kinesiology, movement studies, physical education, sport science and sport studies. The work seeks to improve analytical skills and teach new research methods and techniques.