Theories of Human Development

Piaget's theory of cognitive development states that our cognitive abilities develop through four specific stages.

Attachment theory, developed by John Bowlby and Mary Ainsworth, describes the dynamics of long-term relationships between humans.

Freud's psychosexual theory of development suggests that children develop through a series of stages related to erogenous zones.

Erikson's psychosocial stages of development focus on the resolution of different crises to become a successful, complete person.

Kolhberg's theory of moral development states that we progress through three levels of moral thinking that build on our cognitive development.