Glossary

Pluralistic ignorance

Πλουραλιστική άγνοια

The state in which most people in a group privately doubt something and each of them believes they are the only one, because everybody else is silent for exactly the same reason. The group then acts on an agreement that almost nobody actually holds.

Also known aspluralistic ignorance, the illusion of unanimity
Named byDaniel Katz and Floyd Allport (1931)
Belongs to the skillCollaboration
Level4

How to spot it

When a decision closes fast, ask one person afterwards and alone what they would have said if there had been more time. The answer tells you what the silence was made of.

The research behind the term

The term is not our invention. It comes from published research, and what follows is what that research found — our own synthesis of the published abstract, not a translation of the original.

Edmondson, A. (1999). Psychological Safety and Learning Behavior in Work Teamsdoi:10.2307/2666999

What it found

  • Psychological safety is defined as a shared belief among members that the team is safe for interpersonal risk-taking.
  • It is associated with team learning behavior, whereas team efficacy is not, once psychological safety is controlled for.
  • Learning behavior mediates the relationship between psychological safety and team performance.
  • Both structures — context support, leader coaching — and shared beliefs shape the outcomes.

How it found it

A multi-method field study of 51 work teams in a manufacturing company, measuring antecedent, process, and outcome variables.

What it means for collaboration

Psychological safety does not improve performance directly, but because it lets the team learn — ask questions, admit mistakes, and seek help.

Practised in

The term does not stay a definition. It appears inside missions where the pattern happens in real time and you have to recognise it as it happens to you.

  • The Room Has Decided

    Level 4

Sources

Every claim on this page maps to published research. The citations link to the original source.

  1. Edmondson, A. (1999). Psychological Safety and Learning Behavior in Work Teams — doi:10.2307/2666999