1. an individual’s adherence to a cause, attitude, or belief. Personal commitment does not necessarily reflect cultural values, attitudes, or beliefs. See also postconventional level.

2. in U.S. sociologist Michael P. Johnson’s tripartite model of marital commitment, a form of commitment based on the desire to continue a relationship because it is satisfying, enjoyable, or personally rewarding. It is considered the strongest type of commitment because it is based on the individual’s personal wishes and is experienced as voluntary. Compare moral commitment; structural commitment.