Research Methods, Design, and Analysis aims to provide students with a comprehensive understanding of the research methods used to investigate human thought and behavior, and to do so in a way that is understandable and accessible. Though Research Methods covers the complete range of research methods in use today, it has a slight focus on experimental methods, which are more prevalent in the psychology fields. To ease accessibility and help bring research methods to life, complex material is augmented with illustrations. The 13th Edition has been extensively updated on a chapter-by-chapter basis.