What Is Psychological Safety in Teams?
Psychological safety is a shared belief among team members that the team is safe for interpersonal risk-taking. It describes whether people feel able to ask questions, admit mistakes, raise concerns, and offer dissenting opinions without fear of embarrassment, punishment, or damage to how they are perceived. Psychological safety is frequently misunderstood as meaning a team is comfortable, conflict-free, or free from accountability. The research defines it more precisely, and the distinction matters for how leaders actually build it.
Where the Construct Comes From
Edmondson (1999) introduced psychological safety into organizational research through a study of team learning behavior in a manufacturing setting. Her research found that teams with higher psychological safety engaged more readily in learning behaviors, including seeking feedback, discussing errors openly, and experimenting with new approaches. These behaviors, in turn, predicted better team performance.
The specific mechanism Edmondson identified is important. Psychological safety does not directly cause better performance. It removes the interpersonal risk that otherwise prevents people from engaging in behaviors, like admitting a mistake or asking a clarifying question, that are necessary for learning and improvement. Teams without psychological safety often have the same knowledge and talent as teams with it, but that knowledge does not surface because people are afraid to speak up.
What Psychological Safety Is Not
Edmondson and Lei (2014), in a review tracing the construct's development, clarified distinct conceptual boundaries of psychological safety to resolve confusion with other organizational behavior variables.
Psychological safety is not the absence of conflict. Teams with high psychological safety often have more open disagreement, not less, because members feel safe voicing dissenting views. What differs is the nature of the conflict. It is task-focused and substantive rather than personal and destructive.
Psychological safety is not the same as being liked or comfortable. A team can be psychologically safe while still holding members to high standards and giving direct, critical feedback. Psychological safety describes whether people feel safe taking interpersonal risks, not whether the environment is free of challenge or difficulty.
Psychological safety is not a substitute for accountability. Edmondson and Lei (2014) specifically clarified that psychological safety and accountability are independent dimensions that combine to shape team outcomes. A team with high safety and low accountability tends toward a comfortable but low-performing culture. High psychological safety paired with high accountability is the combination most consistently linked to strong performance.
Psychological safety is not an individual trait. It is a property of the team and the situation, not a fixed characteristic of any single person. The same individual may feel psychologically safe in one team and unsafe in another, depending on how leaders and peers in that specific context respond to risk-taking.
What the Research Shows
Frazier, Fainshmidt, Klinger, Pezeshkan, and Vracheva (2017) conducted a comprehensive meta-analytic review of psychological safety research, synthesizing findings across more than two decades of studies since Edmondson's original work. Their analysis confirmed that psychological safety predicts several meaningful outcomes: team learning behavior, engagement, creativity, and performance.
Their review also identified the conditions under which psychological safety is most likely to develop. Supportive leadership behavior, characterized by openness to input and constructive responses to mistakes, was one of the strongest predictors of team psychological safety. Trust between team members and a supportive organizational context also contributed meaningfully.
The relationship between psychological safety and performance was strongest in contexts requiring learning, innovation, and adaptation to new information, and weaker in highly routinized work where the interpersonal risk-taking psychological safety enables is less relevant to task execution.
How to Build Psychological Safety on a Team
Respond constructively when someone raises a problem or admits a mistake. How a leader responds to the first few instances of vulnerability sets the pattern for the entire team. A defensive or punitive response to an honest mistake teaches the team that risk-taking is unsafe.
Ask genuine questions and model not having all the answers. Leaders who demonstrate their own uncertainty and curiosity give team members explicit permission to do the same. This is a specific, observable behavior rather than a general disposition.
Separate the discussion of ideas from judgment of the people who raised them. Structured approaches to critique, such as evaluating an idea's merits before assigning credit or blame, help teams maintain high standards without punishing the act of contributing.
Pair psychological safety with clear accountability. Edmondson and Lei (2014) are explicit that safety without accountability produces comfortable underperformance. Combine an environment where mistakes can be discussed openly with clear expectations and consequences for performance.
Monitor safety at the team level, not just the individual level. Since psychological safety is a property of the team and its dynamics, aggregate feedback and observation across the team provide a more accurate picture than any single individual's experience.
How Deeper Signals Approaches This
At Deeper Signals, understanding team dynamics is central to building the conditions psychological safety research identifies as important. The Team Dynamics report aggregates individual Core Drivers profiles to surface where personality composition is likely to support or undermine open communication and constructive disagreement. Teams with a wide range of agreeableness and emotional stability, for example, may need explicit norms to ensure quieter or more risk-averse members feel comfortable raising concerns.
Frequently Asked Questions
Is psychological safety the same as trust?
The two concepts are related but distinct. Trust typically refers to an individual's confidence in a specific other person. Psychological safety refers to a shared belief about the team as a whole, specifically regarding whether it is safe to take interpersonal risks in front of the group.
Does psychological safety mean leaders should never give critical feedback?
No. Edmondson and Lei (2014) explicitly reject this interpretation. Psychologically safe teams often receive more direct, honest feedback than unsafe ones, because members trust that critical feedback is intended constructively rather than punitively.
How is psychological safety measured?
Psychological safety is typically measured through validated survey items asking team members to rate agreement with statements such as "it is safe to take a risk on this team" or "team members can bring up problems and tough issues." Edmondson's (1999) original scale remains the most widely used measurement approach.
Does team size affect psychological safety?
Larger teams generally face greater challenges building psychological safety, since interpersonal risk feels more consequential in front of a larger audience and individual contributions are more easily overlooked. Smaller sub-teams or structured turn-taking practices can help larger teams build safety more effectively.
Last reviewed by Dr. Reece Akhtar — June 2026
References
Edmondson, A. C. (1999). Psychological safety and learning behavior in work teams. Administrative Science Quarterly, 44(2), 350–383.
Edmondson, A. C., & Lei, Z. (2014). Psychological safety: The history, renaissance, and future of an interpersonal construct. Annual Review of Organizational Psychology and Organizational Behavior, 1(1), 23–43.
Frazier, M. L., Fainshmidt, S., Klinger, R. L., Pezeshkan, A., & Vracheva, V. (2017). Psychological safety: A meta-analytic review and extension. Personnel Psychology, 70(1), 113–165.
