CUET UG Psychology Development Human Development Stages Piaget Erikson Vygotsky

Must-Know

• Piaget proposed four stages of cognitive development: sensorimotor (0–2 years), preoperational (2–7 years), concrete operational (7–11 years), and formal operational (12+ years).
• In the sensorimotor stage, infants learn through sensory experiences and motor actions; object permanence develops around 8 months.
• Object permanence is the understanding that objects continue to exist even when not seen; tested using hidden toy experiments.
• Preoperational stage is marked by symbolic thinking, egocentrism, and lack of conservation; e.g., child thinks taller glass has more water.
• Conservation is the understanding that quantity remains the same despite changes in shape; mastered in concrete operational stage.
• In the concrete operational stage, children can think logically about concrete events; e.g., solving math problems with physical objects.
• Formal operational stage involves abstract and hypothetical thinking; e.g., solving algebraic equations or debating moral issues.
• Piaget believed cognitive development occurs through processes of assimilation (fitting new info into existing schemas) and accommodation (modifying schemas).
• Erikson’s psychosocial theory includes eight stages across the lifespan, each with a crisis to resolve.
• Trust vs. mistrust (0–1 year) is Erikson’s first stage; infants develop trust if caregivers are responsive.
• Autonomy vs. shame and doubt (1–3 years): children gain independence, e.g., toilet training; success leads to self-control.
• Initiative vs. guilt (3–5 years): children plan activities and assert control; e.g., pretending to be a teacher.
• Industry vs. inferiority (6–11 years): children develop competence through school tasks; failure leads to feelings of inadequacy.
• Identity vs. role confusion (12–18 years): adolescents explore roles and form self-identity; e.g., choosing career paths.
• Vygotsky emphasized social interaction in cognitive development; learning occurs through collaboration with more knowledgeable others.
• Zone of Proximal Development (ZPD) is the difference between what a learner can do independently and with guidance; central to Vygotsky’s theory.
• Scaffolding is temporary support provided by adults or peers to help learners master tasks within ZPD; gradually removed.
• Vygotsky believed language plays a crucial role in cognitive development; private speech guides thinking in children.
• Unlike Piaget, Vygotsky saw cognitive development as continuous and socially mediated, not stage-based.
• Erikson’s stage of intimacy vs. isolation occurs in young adulthood (18–40 years); forming close relationships is key.

Difficulty Level

Intermediate — Requires understanding of overlapping concepts across theorists and distinguishing between cognitive vs. psychosocial frameworks.

Common CUET Traps

• Trap: Confusing Piaget’s conservation milestone with object permanence.
  Avoid: Object permanence (sensorimotor stage, ~8 months); conservation (concrete operational, ~7 years).
• Trap: Attributing scaffolding to Piaget instead of Vygotsky.
  Avoid: Scaffolding and ZPD are exclusively Vygotsky’s concepts; Piaget focused on individual discovery.
• Trap: Assuming Erikson’s stages end in adolescence.
  Avoid: Erikson’s theory spans eight stages from infancy to late adulthood; identity vs. role confusion is only fifth stage.

Practice MCQs

1. At what age does object permanence typically develop according to Piaget?
   A. 3–6 months
   B. 8 months
   C. 12 months
   D. 18 months
   Answer: B
   Explanation: Object permanence develops around 8 months during the sensorimotor stage.
   Why others fail: Option C is tempting as it marks end of first year, but 8 months is the standard benchmark.

2. Which stage of Piaget’s theory is characterized by egocentrism and lack of conservation?
   A. Sensorimotor
   B. Preoperational
   C. Concrete operational
   D. Formal operational
   Answer: B
   Explanation: Preoperational stage (2–7 years) features egocentrism and failure to conserve.
   Why others fail: Option A involves sensorimotor actions but not symbolic thought; conservation tested later.

3. In Vygotsky’s theory, what term refers to the support given by a more knowledgeable person to help a learner solve a problem?
   A. Assimilation
   B. Accommodation
   C. Scaffolding
   D. Equilibration
   Answer: C
   Explanation: Scaffolding is temporary support provided within the Zone of Proximal Development.
   Why others fail: Assimilation and accommodation are Piagetian concepts related to schema adjustment.

4. According to Erikson, which psychosocial crisis occurs during adolescence?
   A. Initiative vs. guilt
   B. Industry vs. inferiority
   C. Identity vs. role confusion
   D. Intimacy vs. isolation
   Answer: C
   Explanation: Identity vs. role confusion is the fifth stage (12–18 years), central to adolescent development.
   Why others fail: Option B (industry) occurs in middle childhood; C is the correct adolescent crisis.

5. Which of the following best illustrates Vygotsky’s concept of the Zone of Proximal Development?
   A. A child solves a puzzle alone after practicing for weeks.
   B. A child learns to tie shoes by watching a video.
   C. A child solves a math problem with teacher’s hints but cannot do it alone.
   D. A child refuses help and insists on doing work independently.
   Answer: C
   Explanation: ZPD involves tasks a child can do with guidance but not independently.
   Why others fail: Option A reflects independent mastery, outside ZPD; C captures the essence of guided learning.

Last‑Minute Revision

• ⚠️ Piaget: 4 stages – sensorimotor, preoperational, concrete operational, formal operational.
• ⚠️ Object permanence → sensorimotor stage → ~8 months.
• ⚠️ Egocentrism → preoperational stage → child cannot see others’ viewpoints.
• ⚠️ Conservation mastered in concrete operational stage (~7–11 years).
• ⚠️ Formal operational stage begins at 12 years; enables abstract reasoning.
• ⚠️ Assimilation vs. accommodation: using old schema vs. changing schema.
• ⚠️ Erikson: 8 psychosocial stages; first is trust vs. mistrust (0–1 year).
• ⚠️ Autonomy vs. shame and doubt → 1–3 years → toilet training phase.
• ⚠️ Initiative vs. guilt → 3–5 years → preschool years.
• ⚠️ Industry vs. inferiority → 6–11 years → school-age competence.
• ⚠️ Identity vs. role confusion → 12–18 years → adolescence.
• ⚠️ Intimacy vs. isolation → young adulthood → forming relationships.
• ⚠️ Vygotsky: cognitive development is socially mediated.
• ⚠️ ZPD = gap between actual and potential development with guidance.
• ⚠️ Scaffolding → temporary support → removed as competence increases.
• ⚠️ Private speech → self-guidance in children → Vygotsky, not Piaget.
• ⚠️ Vygotsky emphasized language as key to cognitive growth.
• ⚠️ Piaget: development is stage-based and universal; Vygotsky: cultural and continuous.
• ⚠️ Erikson’s stages span entire lifespan; Piaget’s end at formal operations.
• ⚠️ Mnemonic for Piaget’s stages: Silly Pandas Can Fly (Sensorimotor, Preoperational, Concrete, Formal).