Theories of Language Development: Skinner vs. Chomsky
📘 13.3 Theories of Language Development: Skinner vs. Chomsky
Language acquisition is a central topic in developmental psychology. Two dominant and contrasting theories were proposed by B.F. Skinner and Noam Chomsky, representing the behaviorist and nativist approaches, respectively.
🔹 A. B.F. Skinner’s Behaviourist Theory
📖 Verbal behavior is learned like any other behavior — through conditioning and reinforcement.
✅ Key Assumptions:
- Language is not innate but learned from the environment.
- Children acquire language through:
- Imitation: Repeating words heard from others.
- Reinforcement: Being praised or rewarded for correct usage.
- Shaping: Gradual improvement via correction and feedback.
🧠 Example:
- A child says “mama,” and the mother smiles and hugs the child.
- Positive reinforcement strengthens the association.
- Over time, the child refines words into grammatically correct sentences through trial and error.
✅ Strengths:
- Explains the role of environment, social interaction, and feedback.
- Useful in behavior therapy and language training for children with disabilities.
❌ Limitations:
- Fails to explain:
- Rapid learning of grammar without explicit teaching
- Use of novel sentences never heard before
- Overgeneralization errors (e.g., “goed” for “went”)
🔹 B. Noam Chomsky’s Nativist Theory
📖 Humans are biologically programmed to acquire language.
✅ Key Concepts:
- Introduced Language Acquisition Device (LAD) – a mental structure with innate grammatical rules (universal grammar).
- Children actively construct grammar rules from the language they hear.
- Language is species-specific and universal among humans.
🧠 Example:
- A 3-year-old says, “I goed to the park,” even though they’ve never heard that phrase.
- Shows rule formation — not just mimicry.
- Children across cultures follow similar language milestones (e.g., babbling → single words → short sentences).
✅ Supporting Evidence:
- Poverty of stimulus: Language input is too limited for pure learning to occur.
- Critical period: Lack of exposure during early years hampers acquisition (e.g., Genie case).
- Universal grammar: Children learning vastly different languages still follow similar developmental patterns.
❌ Criticism:
- LAD is hypothetical, with no direct neurological evidence.
- Underplays the importance of social interaction and feedback.
🔁 Comparison Table
| Feature | Skinner (Behaviorist) | Chomsky (Nativist) |
|---|---|---|
| Core Idea | Language is learned | Language is innate |
| Mechanism | Reinforcement, imitation | LAD – innate universal grammar |
| Emphasis | Environment and nurture | Biology and nature |
| Novel Sentences | Cannot explain | Explained via rule formation |
| Developmental Milestones | Not predicted | Predicted across cultures |
| Applications | Language training, therapy | Understanding child development & disorders |
🧠 Indian Context & Examples:
- Tribal children without schooling but regular social exposure still develop complex syntax → supports Chomsky.
- Rote learning in Indian classrooms aligns with Skinner’s theory (repetition, reinforcement).
- Multilingual homes: Children switch between languages with ease, implying innate capabilities.
✍️ UPSC Answer Writing Tips
- Begin with a short intro on why language acquisition is important in psychology.
- Present both theories clearly and contrast them.
- Use examples (especially Indian or real-life cases).
- Add a short table or diagram if space allows.
- Conclude with an integrative view: both nature (Chomsky) and nurture (Skinner) play roles.
