I.    Piaget

    A.    Sensorimotor (0-2)
    B.    Preoperational (2-7)
    C.    Concrete Operations (7-11)
    D.    Formal Operations (11+)
    E.    Critique

II.    Erickson

    A.    Basic Trust v. Mistrust (infancy, first year)
    B.    Autonomy v. Shame and Doubt (early childhood, ages 2-3)
    C.    Initiative v. Guilt (pre-school, ages 3-5)
    D.    Industry v. Inferiority (elementary school & early middle school, ages 5-12)
    E.    Identity v. Identity Confusion (adolescence, ages 12-18)
    F.    Intimacy v. Isolation (young adulthood, ages 18-30)
    G.    Generativity v. Stagnation (middle to late adulthood, 30-60)
    H.    Integrity v. Despair (late adulthood to death)
    I.    Critique