I came across this great New York Times article called "What Google Learned From Its Quest to Build the Perfect Team", and since the topic is near and dear to me I am taking time to share my short interpretation of this knowledge.
This research points out that best performing teams typically excel in what psychology researchers refer to "conversational turn-taking" and "average social sensitivity" behavioral norms - both relating to psychological safety defined by the Harvard Business School professor Amy Edmondson as
"a sense of confidence that the team will not embarrass, reject or punish someone for speaking up,.. It describes a team climate characterized by interpersonal trust and mutual respect in which people are comfortable being themselves."
