Advertise here with Carbon Ads

This site is made possible by member support. 💞

Big thanks to Arcustech for hosting the site and offering amazing tech support.

When you buy through links on kottke.org, I may earn an affiliate commission. Thanks for supporting the site!

kottke.org. home of fine hypertext products since 1998.

🍔  💀  📸  😭  🕳️  🤠  🎬  🥔

posted by Jason Kottke  ·  gift link

Groupthink

An excellent page on groupthink and how it affects the decision-making process of groups. Irving Janis describes eight symptoms** of groupthink:

1. Illusion of invulnerability
2. Stereotyping outsiders
3. Bounded rationality and tethered assumptions
4. Belief in inherent morality
5. Self-censorship
6. Direct pressure on dissenters
7. Mindguards
8. Unanimity

Groupthink of Irving Janis describes the 1986 Challenger explosion as viewed thorugh the lens of this phenomenon. (via Jerry)

** For some reason, this page lists only seven symptoms, but there are eight. Update: the first symptom should probably read “Illusion of invulnerability”, not “Illusion of vulnerability” (thx Neilalien)…not sure why that page has so many errors. A little Googling should reveal some more reliable sources.