PsycARTICLES, from the American Psychological Association (APA), is a definitive source of full-text, peer-reviewed scholarly and scientific articles in psychology. The database contains more than 137,000 articles from 66 journals published by the APA, its imprint the Educational Publishing Foundation (EPF), and from allied organizations including the Canadian Psychological Association and the Hogrefe Publishing Group. It includes all journal articles, book reviews, letters to the editor, and errata from each journal. Coverage spans 1894 to present; nearly all APA journals go back to Volume 1, Issue 1. PsycARTICLES is indexed with controlled vocabulary from APA's Thesaurus of Psychological Index Terms.