Psychological safety.

the key to high-performing teams

High-performing teams are not those that make fewer mistakes —
they are the teams where people feel safe enough to speak up, challenge ideas and learn.

"Psychological safety is the #1 predictor of team effectiveness"

- Harvard Business Review

Why it matters

In the 1990s, Harvard professor Amy Edmondson made a striking discovery:
the best-performing medical teams reported moreerrors than the worst-performing teams.

Not because they made more mistakes —
but because they felt safe enough to report them.

Later, Google confirmed this insight through Project Aristotle: psychological safety turned out to be the single most important factor behind team effectiveness — and the foundation for all other success factors.

Without psychological safety:

people stay silent
learning slows down
errors repeat themselves
collaboration suffers

With psychological safety, teams enter their learning and performance zone.

What this enables

More learning and continuous improvement
Better decision-making and problem-solving
Higher engagement, motivation and well-being
Stronger collaboration and accountability

Psychological safety is not about comfort.
It is about creating the conditions in which performance and learning can coexist.

Our approach

This training is grounded in behavioural science and organisational psychology, building on the work of Amy Edmondson.

We focus on:

how safety (or lack of it) affects the brain
what psychological safety really is — and what it is not
concrete leadership behaviours that strengthen safety without lowering standards

Participants work with evidence-based tools, self-assessments and real cases from their own teams.

Programme

1. Why safety matters to the brain

How the brain responds to threat and safety
Why psychological safety is required for learning and performance

2. Psychological safety: myths vs facts

Debunking common misconceptions
Why “safe” does not mean “comfortable”
Measuring psychological safety using Edmondson’s index
The four dimensions of psychological safety

3. Strengthening psychological safety in practice

Self-assessment on three critical habits:
- setting shared expectations and meaning
- inviting voice and participation
- continuous learning orientation
Evidence-based techniques to strengthen each habit

4. Your cases & personal action plan

Applying insights to your own team context
Defining concrete actions and implementation intentions

Format

In-company training or virtual learning journey
1 day
Practical, interactive and case-driven

Reviews

"Au nom de Veolia, je souhaite vous remercier de nous avoir invités à suivre la formation-test qui a absolument dépassé nos attentes. Les qualités pédagogiques et les connaissances de notre formatrice ainsi que le niveau des échanges au sein du groupe ont fait la différence.

Nous repartons avec beaucoup de clarification des sujets et beaucoup d'idées pour nos objectifs de formation et de sensibilisation interne."

à très bientôt,

Anne-Sophie PIERRE, Diversity Manager, Veolia

"I gained new insights that I can immediately apply in my job.

The trainer creates a safe atmosphere and a stimulating learning environment. She leaves room for interaction and asking questions. I enjoyed exchanging experiences with other participants."

Karine Robijn, HR & events, Umicore

Curious how psychological safety could strengthen learning and performance in your teams?

A short conversation is often the best start.

Book a short call