been done to advance the general theory of adult devel- opment. . Daniel J. Levinson, Department of Psychiatry, Yale University School of Medicine, 34 Park .
Daniel J. Levinson (May 28, 1920 – April 12, 1994), a psychologist, was one of the founders of the field of positive adult development. Levinson is most well.
The stage-crisis view is a theory of adult development that was established by Daniel Levinson. Although largely influenced by the work of Erik Erikson.