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3.5: Stages of Development

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    Stages of Development

    As we have read, different theories propose different stages of development. This page displays the stages of development for Piaget, Erikson, and Freud. The following information provides a quick reference for these three theories.

    Stages of Development

    Piaget Stages of Cognitive Development

    Sensorimotor (birth– 2 years)

    Preoperational (2–7 years)

    Concrete Operations (7–11 years)

    Formal Operations (12+ years)

    Erikson Stages of Psychosocial Development

    Trust Vs. Mistrust (birth–18 months)

    Autonomy Vs. Shame (18 months–3 years)

    Initiative Vs. Guilt (3–5 years)

    Industry Vs. Inferiority (5–12 years)

    Ego Identity Vs. Role Confusion (12–18 years)

    Intimacy Vs. Isolation (18–40 years)

    Generativity Vs. Stagnation (40–65 years)

    Ego Integrity Vs. Despair (65+ year)

    Freud Stages of Psychosexual Development

    Oral (birth–1 year)

    Anal (1–3 years)

    Phallic (3‐6 years)

    Latency (6–12 years)

    Genital (12+ years) (1)

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