which theorist saw the issues of identity and role confusion as critical to adolescent development
Erik Erikson And Self-Identity Erik Erikson And Self-Identity. According to Erik Erikson, a prominent developmental theorist of the 1950's, youth must resolve two life crises during adolescence. Unlike many other developmental theorists of his era, Erikson's psychosocial theory of human development covers the entire lifespan, including adulthood.