The Publication Manual of the American Psychological Association (4th
ed., APA, 1994) is a guide for many aspects of professional writing fo
r psychologists. In this article, the authors propose that APA style i
nvolves more than a set of explicit guidelines for presenting informat
ion; it also incorporates a variety of unarticulated practices that re
flect fundamental attitudes and values of psychologists. The authors e
xamine some of the less obvious characteristics of APA style to show h
ow they support the discipline's commitment to the empirical method an
d the discipline's view of itself as a cumulative, collaborative enter
prise. Students who enter the field of psychology acquire psychology's
language conventions, and in doing so they also come to implicitly en
dorse important values of their discipline.