Erik Erikson developed a theory of psychosocial development consisting of 8 stages from infancy to late adulthood. Each stage involves a psychological task and associated virtue to be developed. For example, the first stage of infancy involves developing trust versus mistrust as infants learn if their needs will be met consistently. Educational implications include meeting student needs dependably to foster trust. Overall, Erikson's theory proposes that successful completion of each life stage leads to a healthy personality and the ability to face later stages.