Use short pre–post surveys assessing comfort with dissent, error reporting, and conflict navigation. Adapt well-known psychological safety items to local language. Keep scales simple, protect anonymity, and share summaries transparently so people trust the process and participate wholeheartedly in improvement.
Look for tangible shifts: more questions in meetings, earlier escalation of risks, fewer defensive replies in chat, and richer peer acknowledgments. Lightweight analytics, paired with human judgment, reveal whether practice is transferring into everyday interactions where stakes actually live.
Invite narrative evidence through critical incident interviews or short voice notes. Ask when someone used a line, gesture, or pause learned here to de-escalate tension. One support agent stopped a blame spiral with a curious question, and that story traveled, inspiring safer habits.