Psychological safety is a shared belief that people can speak up, report mistakes and raise safety concerns without fear of blame, embarrassment or punishment.

Psychological safety is a shared belief within a team that it is safe to take interpersonal risks, such as asking questions, admitting mistakes, reporting hazards, challenging a decision or stopping work, without fear of being blamed, embarrassed or punished. The concept was developed by Harvard professor Amy Edmondson and became widely known after Google's Project Aristotle found it was the strongest predictor of team effectiveness.
In workplace safety, psychological safety is what makes reporting systems work. Workers who feel safe speaking up report more near misses, use stop work authority and flag unsafe conditions early, giving leaders the information they need to prevent serious injuries.
A new apprentice notices a rigging sling with a damaged tag and tells the crane crew. Instead of brushing her off, the foreman stops the lift, thanks her in front of the crew and replaces the sling. Over the next month, near-miss reports from apprentices on that site triple.
No. It means people aren't punished for honest mistakes or speaking up. Reckless or willful violations are still addressed.
Common methods include short team surveys based on Edmondson's questions, near-miss and hazard reporting rates and how often workers use stop work authority.
Most serious incidents have warning signs. If workers don't feel safe raising them, leaders never hear about the problem until someone is hurt.
Part of SafetyIQ's EHS glossary: plain-English definitions of workplace health and safety terms.
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