Compiles over 25,000 entries chosen by APA as the most relevant terms in psychology. Provides thousands of cross-references, directing the user to synonyms and antonyms, acronyms and abbreviations, related terms and concepts. Provides users with foremost language and terms in psychology. Contains a Guide to Use, explaining formal elements and editorial practices. Includes Four Appendixes, each gathering entries thematically into listings covering biographies; institutions, associations, and organizations; psychological therapies and interventions; and psychological tests and assessment instruments.