Who developed the 8 stages pf psychosocial development Erikson

Infancy or Trust vs. Mistrust Birth- 1 or 1/2

Toddler or Autonomy vs. Shame 1-2

Preschooler or Initiative vs. Guilt 2-6

School Age or Industry vs. Inferiority 6-12

Adolescence or Identity vs. Diffusion 12-18

Young Adulthood or Intimacy vs. Isolation 19-40

Middle Adulthood or Generativity vs. Self-Absorption 40-65