The Myers Briggs is widely used and assesses 4 pairs of character traits on a continuum:

The first set of mental preferences relates to how people "Perceive" or take in information.

1. People who prefer Sensing Perception favor clear, tangible data and information that fits in well with their direct here-and-now experience. They like to take in information in a precise and exact manner.
2. In contrast, people who prefer Intuition Perception are drawn to information that is more abstract, conceptual, big-picture, and represents imaginative possibilities for the future

The second set of mental preferences identifies how people form "Judgments" or make decisions.

1. People who prefer Thinking have a natural preference for making decisions in an objective, logical, and analytical manner with an emphasis on tasks and results to be accomplished. They like to take information in a precise and exact manner.
2. People whose preference is for Feeling make their decisions in a more global, visceral, harmonious and value-oriented way, paying particular attention to the impact of decisions and actions on other people.

The third set of mental preferences identifies how people get their “Energy”

1. Simply put, an “Extroverte” gets energy from being around people. They direct and receive energy from the outer world.
2. An “Introverte” gets energy from being alone. They direct and receive energy from the inner world.

The fourth set of mental preferences identifies “Life Management Orientation”

1. People with a preference for Judging like to come to closure and to act on decisions quickly.
2. On the other hand, people who prefer Perceiving like to remain open and adapt to new information.