The seventh edition of APA's Publication Manual of the American Psychological Association was published in October, 2019. Please consult with your instructor on which edition to use for your class.
APA Style originated in 1929, when a group of psychologists, anthropologists, and business managers convened and sought to establish a simple set of procedures, or style guidelines, that would codify the many components of scientific writing to increase the ease of reading comprehension. They published their guidelines as a seven-page article in Psychological Bulletin describing a “standard of procedure, to which exceptions would doubtless be necessary, but to which reference might be made in cases of doubt” (Bentley et al., 1929, p. 57).
Publication Manual of the American Psychological Association by