Definition
Groupthink is the psychological dynamic in which highly cohesive groups prioritize internal harmony and consensus over accurate assessment of reality, suppressing dissent, ignoring contradictory information, and producing decisions that none of the individual members would have endorsed if reasoning independently.
The concept was named and systematized by social psychologist Irving Janis in his 1972 book Victims of Groupthink, later expanded in the 1982 revised edition Groupthink: Psychological Studies of Policy Decisions and Fiascoes. Goleman frames it as a collective attentional failure: the group's focus collapses inward onto social cohesion, at the cost of the outer-focus needed to perceive reality accurately.
Why it matters
How it works
Janis's original analysis
Janis studied several US foreign policy disasters for common patterns: the failure to anticipate the Pearl Harbor attack (1941), the Bay of Pigs invasion plan (1961), the escalation of the Vietnam War, and the Watergate cover-up. He identified eight characteristic symptoms: illusion of invulnerability, collective rationalization, belief in the group's inherent morality, stereotyped views of out-groups, pressure on dissenters, self-censorship, illusion of unanimity, and the emergence of self-appointed "mindguards" who shield the group from contradictory information.
The Challenger disaster
The January 1986 Space Shuttle Challenger explosion became the canonical post-Janis case study. Engineers at Morton Thiokol had data showing that O-ring resilience degraded significantly at temperatures below 53°F; the launch temperature was forecast at 29°F. In a tense teleconference the night before launch, managers overrode engineers' objections under time pressure, status pressure, and a "prove it's unsafe" burden-of-proof reversal. The Rogers Commission report identified the organizational communication failures that suppressed engineering concerns — a textbook groupthink pattern operating in a hierarchical setting.
Goleman's attention framing
In Focus, Goleman treats groupthink as an example of how social attention — the automatic monitoring of group norms, status signals, and approval cues — can overwhelm systemic attention. The group becomes so focused on its own internal social dynamics that the feedback loops connecting it to reality narrow or close. The antidote, in his framework, is not better interpersonal process alone but deliberate expansion of the group's attentional field: seeking outside perspectives, actively searching for disconfirming information, and protecting the channels through which weak signals of trouble can surface.
Structural countermeasures
Research since Janis has produced practical interventions with documented effectiveness. Pre-mortem analysis (Gary Klein's technique: "Imagine it's one year later and this decision was a disaster — what went wrong?") surfaces silent reservations without requiring individuals to break rank in real time. Red teams assigned to argue against the preferred option institutionalize dissent. Anonymous polling before discussion (via digital tools) reveals the true distribution of opinion before social pressure homogenizes it.