I am not a fan of personality tests because I think they place labels on us that we allow to define us: “I am an INTJ; I am a Green; etc”.  However, I do love the insight they provide in a nonthreatening way. Some people will actually reflect on what they learn and try to improve things they don’t like. It is vital for leaders to know what makes them tick and where they are weak if they are to be productive.