What goes wrong when you ignore that psychological safety enables team cognition?

The most common reason fails: Confusing psychological safety with niceness, conflict avoidance, or lowered standards. Psychological safety is not about making everyone comfortable. It is about making it safe to be uncomfortable — safe to disagree, safe to point out problems, safe to say 'I do not understand,' safe to challenge a plan that everyone else seems to support. Teams that are 'nice' but avoid conflict have low psychological safety dressed in pleasant clothing. The conflicts are present; they are just suppressed. High psychological safety and high standards together produce the most effective teams — teams where people care enough to disagree and feel safe enough to do so. High safety with low standards produces a comfortable team that underperforms. High standards with low safety produces a fearful team that hides problems until they explode.

The fix: Assess your team's psychological safety using Edmondson's seven-item scale. Ask each team member to anonymously rate their agreement (1-5) with these statements: (1) If I make a mistake on this team, it is held against me. (2) Members of this team are able to bring up problems and tough issues. (3) People on this team sometimes reject others for being different. (4) It is safe to take a risk on this team. (5) It is difficult to ask other members of this team for help. (6) No one on this team would deliberately act to undermine my efforts. (7) Working with members of this team, my unique skills and talents are valued and utilized. Average the scores (reverse-scoring items 1, 3, and 5). Scores above 4.0 suggest strong psychological safety. Scores below 3.0 suggest a team where significant cognitive capacity is being suppressed by interpersonal risk. Share the aggregate results (not individual responses) with the team and discuss: 'What specific behaviors would increase our score by one point?'

The underlying principle is straightforward: People will only contribute their best thinking if they feel safe to be wrong, to disagree, and to surface uncomfortable truths.