False-consensus effect

What it is

Overestimating how widely our own opinions and behaviours are shared.

Related

• Availability heuristic bias
  The opinions of people around us come easily to mind and stand for everyone's.
• Confirmation bias bias
  We hear from like-minded people, which makes our opinion look universal.

Appears in

• The 99 thinking errors in Rolf Dobelli's The Art of Thinking Clearly#77: False-consensus effect

References

• Wikipedia: False-consensus effect en.wikipedia.org
• The 99 thinking errors in Rolf Dobelli's The Art of Thinking Clearly en.wikipedia.org
• Wikipedia: List of cognitive biases en.wikipedia.org
• Wikipedia: Cognitive bias codex en.wikipedia.org

More in “People and groups: social influence”