Jun 12, · Theories of Adult Development: Levinson, Vaillant & Neugarten. a comprehensive theory of adult development, the Adult World (Age ). This is the stage . Erikson's stages of psychosocial development, as articulated in the second half of the 20th century by Erik Erikson in collaboration with Joan Erikson, is a comprehensive psychoanalytic theory that identifies a series of eight stages that a healthy developing individual should pass through from infancy to .
Changes in adulthood have been described by a number of theories and metatheories, which serve as framework for adult development research. Lifespan development theory. Life span development is an overarching framework that considers individual development from conception to old age. The framework considers the lifelong accumulation of. ADVERTISEMENTS: Stages and Theories of Personality Development! 1. Freudian Stages or Psychoanalytical Theory: Sigmund Freud’s Psychoanalytical theory of personality has been based primarily on his concept of unconscious nature of personality. It is based on the notion that man is motivated more by unseen forces than by conscious and rational thoughts.