A leader can establish positive norms within groups and teams by acting as a positive role model, reinforcing and rewarding desired behaviors, selecting members who can and will perform, and providing support and training for members.

A leader plays a critical role in establishing and reinforcing positive norms within teams and groups. This can be done through various means, including acting as a positive role model, rewarding desired behaviors, selecting members who can and will perform, and providing support and training for members.