Psychology of the Scientist .68. Trends in Multiple Authorship
This brief study tested the generality of Zook's 1987 conclusion that the trend toward increasing numbers of authors per article had leveled off in the Journal of Counseling Psychology. The number of authors per article per year in four journals representing four professional organizations (American Psychological Association, National Association of School Psychologists, American Counseling Association, and American Medical Association) were counted and compared for an 11-yr. period (1982–1992). Statistically significant differences were found between disciplines based on the number of authors per article, with the medical journal having a greater number of articles with four or more coauthors. The average number of authors credited for an article was stable for all four journals.
Yost, T. E.
(1994). Psychology of the Scientist .68. Trends in Multiple Authorship. Psychological Reports, 74(1), 299-303.
Available at: http://aquila.usm.edu/fac_pubs/7175