Group performance in a cognitive task.

On a cross-word puzzle task performed by 60 pairs of male Ss, correlations between group performance and performance of the individuals (independently determined) were calculated. 82% of the true group performance variance on the task could be predicted from the individual performance scores. "It is suggested that the nature of the task is important in studies of group performance, and that the existence of 'group' phenomena should be empirically demonstrated rather than assumed." (PsycINFO Database Record (c) 2010 APA, all rights reserved)