Question 1

What is psychological safety in a team?

Accepted Answer

Psychological safety is the shared perception, within a team, that it is possible to express ideas, questions or mistakes without fear of negative consequences for relationships.
The concept was developed by Amy Edmondson and has also been explored by organisational research, including Google’s Project Aristotle, which highlighted it as a recurring element in effective teams.
It doesn’t mean the absence of conflict or feeling good together: it means, precisely, being able to face disagreements openly and constructively.
When it is present, it raises the quality of discussion and increases learning, collaboration and innovation.

Question 2

How do you measure psychological safety in a team?

Accepted Answer

The level of psychological safety can be measured with validated tools, such as Amy Edmondson’s 7-item scale.
In a few minutes, the survey gives an indication of the average level the team perceives and of how much the answers vary within the team, to see how similarly or differently the people in the team experience it.
The tool is not a conclusive diagnosis. It is rather a starting point for a structured conversation in the team and with leaders, and for monitoring how things evolve over time.

Question 3

How can I increase psychological safety in my team?

Accepted Answer

Psychological safety is built over time through consistent behaviour, above all from the people who lead the team.
Some important levers are:

clarify context and expectations
encourage everyone to take part
set an example through openness and transparency
treat mistakes as an opportunity to learn
recognise contributions explicitly

People watch a leader’s behaviour more than they listen to their recommendations: if the leader doesn’t speak up, the team is unlikely to. Conversely, if people experience that this behaviour is useful and not penalised, they are more willing to put themselves forward.

Question 4

Psychological safety and performance: is there really a measurable link?

Accepted Answer

Yes, and the evidence is strong. Google’s multi-year research (Project Aristotle) on the factors that make work groups effective analysed more than 180 internal teams and identified 5 factors that predict performance. Psychological safety is the first and the most important: the other 4 (dependability, structure/clarity, meaning, impact) work fully only when there is a solid foundation of psychological safety.Other research (Edmondson, Harvard 2018) has linked psychological safety to lower turnover, greater capacity for innovation, a reduction in errors reported in time, and better quality of decisions in complex contexts. In medical and aerospace settings there is also evidence of fewer serious incidents.