Erikson maintained that personality develops in a predetermined order through eight stages of psychosocial development, from infancy to adulthood. During each stage, the person experiences a psychosocial crisis which could have a positive or negative outcome for personality development.
For Erikson (1958, 1963), these crises are of a psychosocial nature because they involve psychological needs of the individual (i.e., psycho) conflicting with the needs of society (i.e., social).
The fourth psychosocial stage takes place during the early school years from approximately ages 5 to 11.