Research 2026-09-24 Team Performance Lausanne

Psychological safety: what research actually establishes

Psychological safety has become a watchword. Before turning it into an objective, a leadership team should ask a precise question: what exactly do the studies linking it to team learning and performance measure?

The founding result

Amy Edmondson (1999, Administrative Science Quarterly) defines psychological safety as a shared belief within a team that it is safe to take interpersonal risks — reporting a mistake, asking a question, voicing disagreement. In her field study, this climate is associated with team learning behaviours, which are in turn linked to performance.

What the syntheses consolidated

The meta-analysis by Lance Frazier and colleagues (2017, Personnel Psychology) confirms associations between psychological safety, information sharing, learning and performance. The review by Alexander Newman, Ross Donohue and Nathan Eva (2017, Human Resource Management Review) nevertheless stresses that most studies are cross-sectional: they establish correlations more than causation.

Psychological safety: what research actually establishes — SHR, Lausanne — Vaud

The nuance that changes the reading

Edmondson herself insists on a point often lost: psychological safety is neither niceness nor the absence of demands. It matters when it accompanies high standards; without them, it can shrink into a comfort zone. It is also a property of the group, not an individual trait. (our executive and employee training programmes)

What follows for a leadership team

If the concept describes a collective climate, it cannot be decreed through a communication campaign. It is built in ordinary interactions: how a manager reacts to a reported error, how much room objections get in meetings. This reading remains conditional — effects vary with task type and cultural context.

A practical implication, verifiable in-house

A check requiring no instrumentation: for a team's last three incidents, note when the information surfaced and who raised it. Late reporting, or always by the same person, points to a climate worth examining before any messaging. This is the analysis we run with Lausanne teams before working on how they function together. To go further: explore the Team Performance training in Lausanne, or browse our executive and employee training programmes in Switzerland.