Extended testing of the performance of small groups working with compl
ex issues has revealed the pervasive existence of a phenomenon which i
s here named 'Spreadthink'. This phenomenon accounts for worldwide ine
ffectiveness of groups of people trying to work together to resolve co
mplex issues under conditions that neither recognize nor compensate fo
r Spreadthink. Since Spreadthink is an immobilizing phenomenon, it des
erves widespread attention and appropriate compensatory action by lead
ers, managers and administrators wherever complex issues are under ser
ious consideration in organizations. Concurrent with the testing that
uncovered and documented Spreadthink, measures that can be taken to ov
ercome the effects of Spreadthink have been tested. The evidence that
would prove the effectiveness of these measures is equal in extent, bu
t much less quantitative in nature than the evidence that supports the
presence of Spreadthink. Nevertheless, a significant case can be made
to the effect that if Spreadthink can be overcome in a particular sit
uation, the system of management called interactive management provide
s the capability to overcome it in that situation.