Performance and Perceptions of Brainstormers in an Organizational Setting

Employees of a corporation who had undergone considerable training for effective teamwork were asked to brainstorm about a job-relevant issue in groups of four or alone. One half of the groups brainstormed alone first, and the other half brainstormed as a group before brainstorming alone. Participants were also asked to rate their performance and indicate whether they would perform better in groups or alone on a brainstorming task. Consistent with past laboratory research, groups generated only about half as many ideas as a similar number of individuals (nominal group), and group brainstorming led to more favorable perceptions of individual performance. Participants also believed that they would brainstorm more effectively in a group than alone. These results indicate that productivity losses in brainstorming groups are not restricted to laboratory groups. Such losses occur even in groups who work together on a daily basis, have considerable training in group dynamics, and are dealing with a job-relevant issue. The sequence of alone to group brainstorming did not influence overall productivity. The relation of this research to that of facilitated and electronic brainstorming is discussed.