Statistics for the Behavioral Sciences, Fifth Edition .
Statistics is one of the most important tools in psychology, and in most other sciences as well.
Because people's behavior is often highly variable, the results of psychological experiments are noisy. The emphasis is on developing a firm conceptual understanding, not on memorizing formulas. You will learn to use powerful computer software to crunch the numbers. You are expected to read the assigned chapters in the textbook. The lectures are designed to compliment the textbook, not duplicate it, so you will find both reading the text and attending lectures beneficial.