Research design and general problem solving by experimental and correlational methods will be discussed and applied to biological situations. Special attention will be given to the problems of procedural artifacts and confounding variables. Conceptual understanding of multiple regression, analysis of variance, discriminant analyses, time series and canonical correlation will be considered, rather than the theory and mechanics of statistical tests. Emphasis will be placed on the applicability of available computer software and on the interpretation of sample outputs. Two lectures per week.