Behaviourism: Pavlov, Skinner and Thorndike
Overview
Behaviourism is one of the most frequently tested learning theories in TS TET Child Development and Pedagogy. It views learning as a change in observable behaviour resulting from environmental stimuli, rather than internal mental processes. For the exam, you must understand three foundational theorists: Pavlov (classical conditioning), Thorndike (connectionism/trial-and-error), and Skinner (operant conditioning).
This topic matters because behaviourist principles form the backbone of classroom practices like reward systems, punishment protocols, drill-and-practice methods, and habit formation. Questions typically ask you to identify the correct theorist for a given experiment, distinguish between classical and operant conditioning, or apply these principles to classroom situations. Master the key experiments, laws, and terminology—these are direct question sources.
---
Key Concepts
- **Behaviourism's core assumption**: Learning is a stimulus-response (S-R) connection. Only observable, measurable behaviour counts—not thoughts, feelings, or mental states.
- **Classical Conditioning (Pavlov)**: Learning occurs when a neutral stimulus becomes associated with an unconditioned stimulus, eventually producing a conditioned response. The learner is passive.
- **Connectionism (Thorndike)**: Learning is trial-and-error. Successful responses get "stamped in" through satisfaction; unsuccessful ones get "stamped out." Introduced the S-R bond concept.
- **Operant Conditioning (Skinner)**: Learning occurs through consequences of voluntary behaviour. Reinforcement strengthens behaviour; punishment weakens it. The learner is active.
- **Reinforcement vs Punishment**: Reinforcement (positive or negative) increases behaviour frequency. Punishment decreases behaviour frequency.
- **Role of environment**: All three theorists emphasise that the external environment shapes behaviour—heredity and internal states are secondary.
- **Classroom implication**: Behaviourism supports drill, repetition, immediate feedback, reward charts, token economies, and structured teaching.
---
Key Facts and Definitions
| Term | Meaning | |------|---------| | **Unconditioned Stimulus (UCS)** | Naturally triggers a response (e.g., food causing salivation) | | **Unconditioned Response (UCR)** | Natural, unlearned reaction to UCS | | **Conditioned Stimulus (CS)** | Previously neutral stimulus that, after pairing, triggers response | | **Conditioned Response (CR)** | Learned response to the conditioned stimulus | | **Positive Reinforcement** | Adding a pleasant stimulus to increase behaviour | | **Negative Reinforcement** | Removing an unpleasant stimulus to increase behaviour | | **Positive Punishment** | Adding an unpleasant stimulus to decrease behaviour | | **Negative Punishment** | Removing a pleasant stimulus to decrease behaviour | | **Law of Effect** | Responses followed by satisfaction are strengthened | | **Law of Exercise** | Repeated practice strengthens S-R bonds | | **Law of Readiness** | Learning is effective when the learner is prepared |
**Pavlov's Experiment**: Dog, bell, food. Bell (neutral) paired with food (UCS) repeatedly. Eventually, bell alone (now CS) causes salivation (CR).
**Thorndike's Experiment**: Cat in puzzle box. Through random movements (trial-and-error), cat escapes and gets food. Escape time decreases with trials.
**Skinner's Experiment**: Rat/pigeon in Skinner Box. Pressing lever delivers food (reinforcement). Behaviour frequency increases.
---
Worked Examples
### Example 1: Identifying Conditioning Type **Question**: A child studies hard because her teacher gives her gold stars. Which type of conditioning is this?
**Solution**:
- Step 1: Is the behaviour voluntary? Yes—studying is a choice.
- Step 2: Is something being added or removed? Gold stars are added.
- Step 3: Does the behaviour increase? Yes.
- **Answer**: Operant conditioning with positive reinforcement (Skinner).
---
### Example 2: Applying Thorndike's Laws **Question**: A teacher makes students practice multiplication tables daily. Which law of Thorndike supports this?
**Solution**:
- Step 1: Daily practice means repetition and drill.
- Step 2: Thorndike's Law of Exercise states that repeated use strengthens S-R connections.
- **Answer**: Law of Exercise.
---
### Example 3: Classical Conditioning in Classroom **Question**: Students feel anxious whenever they see the math teacher because he often scolds them during math class. Identify the components.
**Solution**:
- UCS: Scolding (naturally causes anxiety)
- UCR: Anxiety (natural response to scolding)
- CS: Math teacher (previously neutral, now associated with scolding)
- CR: Anxiety upon seeing the teacher
- **Answer**: Classical conditioning (Pavlov). The teacher has become a conditioned stimulus.
---
Common Mistakes
- **Confusing negative reinforcement with punishment** → Negative reinforcement removes something unpleasant to increase behaviour (e.g., excusing homework for good behaviour). Punishment decreases behaviour. Remember: reinforcement always increases, punishment always decreases.
- **Mixing up Pavlov and Skinner** → Pavlov deals with involuntary/reflexive responses (salivation, fear). Skinner deals with voluntary behaviour (pressing lever, studying). Ask: "Is the response automatic or chosen?"
- **Forgetting Thorndike's position** → Students often skip Thorndike or merge him with Skinner. Thorndike came before Skinner and focused on trial-and-error and the Law of Effect. He is the bridge between Pavlov and Skinner.
- **Thinking behaviourism explains all learning** → Behaviourism ignores cognition, insight, and social learning. Exam questions may ask for limitations—be ready to note that it cannot explain complex problem-solving or creativity.
- **Assuming negative means bad** → "Negative" in reinforcement/punishment means removal, not something harmful. Negative reinforcement is still reinforcement (increases behaviour).
---
Quick Reference
1. **Pavlov = Classical Conditioning = Involuntary response = S-S association (stimulus-stimulus)**
2. **Thorndike = Connectionism = Trial-and-error = Law of Effect, Exercise, Readiness**
3. **Skinner = Operant Conditioning = Voluntary behaviour = Reinforcement and Punishment**
4. **Reinforcement → Behaviour increases | Punishment → Behaviour decreases**
5. **Positive = Add something | Negative = Remove something**
6. **Classroom uses**: Rewards, token economy, drill-practice, immediate feedback, habit formation