This sixth edition of the Publication Manual of the American Psychological Association is an essential resource for psychology students and professionals alike. With its comprehensive guidance on research design, data analysis, and statistical testing, this textbook is a valuable tool for anyone seeking to deepen their understanding of psychology. From the lengthy Introduction to the manual to the detailed instructions on creating effective study designs, this publication is a must-have for anyone interested in pursuing a career in psychology. With its clear and concise language, this textbook is an excellent resource for both novice and experienced researchers.