According to Erickson's theory, the dominant crisis of adolescence concerns "Establishing an identity".
Adolescence commonly portrays the years between ages 13 and 19 and can be viewed as the transitional stage from childhood to adulthood. The physical and mental changes that happen in immaturity can begin prior, in the preteen or "tween" years (ages 9 through 12). Adolescence can be a period of both confusion and disclosure. This transitional period can raise issues of freedom and self-personality; numerous teenagers and their companions confront intense decisions in regards to schoolwork, sexuality, medications, liquor, and social life.