PsycINFO is the American Psychological Association's (APA) renowned resource for abstracts of scholarly journal articles, book chapters, books, and dissertations.It is the largest resource devoted to peer-reviewed literature in behavioral science and mental health, and contains over 3 million citations and summaries dating as far back as the 1600s, with one of the highest DOI matching rates in the publishing industry. Ninety-nine percent of its content is peer-reviewed. Included is information on the psychological aspects of related fields such as medicine, psychiatry, nursing, sociology, education, pharmacology, technology, linguistics, anthropology, business, law and others. Journal coverage, which spans from the 1800s to the present, includes international material selected from around 2,500 periodicals in dozens of languages. PsycINFO is indexed with controlled vocabulary from APA's Thesaurus of Psychological Index Terms.