We set out to develop a new, more objective, measure for team psychological safety in the
form of an observation scheme for workplace teams to aid further theoretical development
and provide practitioners with a tool to track team development. As psychological safety is an
affective state and thus not directly observable. We first aim to identify human behaviors
representative of four constructs correlated to psychological safety, being information sharing,
relationship-, task-, and process conflict. We conducted a Delphi study in which experts
nominated workplace behaviors reflective of high psychological safety. The resulting twenty
nine behaviors were subsequently observed in ten workplace teams: both in a meeting setting
and in a regular work setting. We identified nine meeting behaviors and seven workplace
behaviors which can aid in observing psychological safety. In order to check the validity of
our newly developed measure, we also surveyed psychological safety and the four correlated
constructs in the observed teams. We found support for our resulting observation scheme.
This research provides a potentially fruitful approach to measuring psychological safety in a
more objective manner compared to the self-report survey. Follow-up study is needed to
further test, improve, and validate the observation scheme.