I love this from Sonia Sparkles – the psychological safety pizza! How many slices do you have?

The best performing teams are generally Small, Lean, Long-Lived, Autonomous, and Multi-disciplinary – and psychologically safe. It’s fair to say that psychological safety is generally more difficult to foster as group size increases. As a member of a group, predicting the “risk” of interpersonal consequences of speaking up is an easier mental calculation in a group of 3 versus a group of 30, or 300. The chances of someone punishing or humiliating us as a result of speaking up naturally increases as group size increases: as a result, we tend to feel psychologically safer in smaller groups.