This Dictionary give the definitions of more than 8,000 authoritative and up-to-date entries, this best-selling dictionary covers all branches of psychology. The coverage ranges alphabetically from ABA Design to zygote and includes most of the important terms used in its allied subjects- psychoanalysis, psychiatry, criminology, neuroscience, and statistics. It features comprehensive coverage of key areas, for example: cognition, sensation and perception, emotion and motivation, learning and skills, language, mental disorder, and research methods. Entries provide clear and concise definitions, word origins and derivations, and are extensively cross-referenced for ease of use.