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 pe r article per year in four journals representing four professional org anizations (American Psychological Association, National Association o f School Psychologists, American Counseling Association, and American Medical Association) were counted and compared for an 11-yr. period (1 982-1999). Statistically significant differences were found between di sciplines based on the number of authors per article, with the medical journal having a greater number of articles with four or more coautho rs. The average number of authors credited for an article was stable f or all four journals.