1. Decision Making in Groups

2. Outline
Groupthink
Decision making in groups

3. Groupthink
Illusion of invulnerability
Assumptions of morality
Realisations
Stereotyping
Self-censorship
Illusions of unanimity
Mind-guarding
Direct pressure
…mode of thinking in a cohesive, insulated, high success, prestige group with strong minded, powerful leader (with Praetorian Guard). Desire for unanimity overrides motivation to evaluate alternatives properly.
Consequences
discussion curtailed, limited alternatives
limits on information seeking and re-evaluation of facts
outsiders less credible so fail to import expert advice
weak contingency planning

4. Video: Groupthink

5. Decision Making in Groups
Your group must solve each of the problems given in the envelopes
Your group’s “dealer” will pass out the slips of paper in the envelopes to all members until everyone has about the same amount
You are NOT to show these slips of paper to others in the group- but are instead supposed to exchange this information orally