Theories of learning: classical, operant and observational learning of behaviour (QCE Psychology Unit 3)
“Compare classical conditioning, operant conditioning and social learning theory, and discuss the underlying theories of behaviourism and social and cognitive psychology; for classical conditioning, describe learned fear responses, with reference to the 'Little Albert' experiment”
Classical conditioning (Pavlov) is learning by association, in which a neutral stimulus comes to trigger a reflexive response, as in Watson and Rayner's Little Albert. Operant conditioning (Skinner) is learning through consequences, where reinforcement increases and punishment decreases behaviour. Observational learning (Bandura's Bobo doll) is learning by watching and imitating models. Fear can be learnt through any of these routes.
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What this dot point is asking
QCAA wants you to explain the three major theories of learning and how each produces a change in behaviour, using named studies. You should be able to define the key terms of each theory, apply them to examples (especially learnt fear), and distinguish the theories from one another.
The answer
Classical conditioning
Classical conditioning is learning through association between two stimuli. Ivan Pavlov (1902) demonstrated it with dogs: food (an unconditioned stimulus, UCS) naturally caused salivation (an unconditioned response, UCR). By repeatedly pairing a bell (a neutral stimulus) with food, the bell alone eventually triggered salivation. The bell became a conditioned stimulus (CS) and the salivation a conditioned response (CR).
Key processes include acquisition (learning the association), extinction (the CR fades when the CS is presented without the UCS), spontaneous recovery, generalisation (responding to similar stimuli) and discrimination (responding only to the specific CS).
- Watson and Rayner (1920), Little Albert. They conditioned an infant to fear a white rat by pairing it (CS) with a loud, frightening noise (UCS). Albert came to fear the rat and generalised his fear to other furry objects. This showed that emotional responses, including fear, can be classically conditioned, though the study is now considered deeply unethical.
Operant conditioning
Operant conditioning is learning through consequences. Edward Thorndike's law of effect stated that behaviours followed by satisfying consequences are strengthened. B.F. Skinner systematised this using the Skinner box.
- Reinforcement increases the likelihood of a behaviour. Positive reinforcement adds a pleasant stimulus (a reward); negative reinforcement removes an unpleasant stimulus (taking a painkiller to stop pain).
- Punishment decreases the likelihood of a behaviour. Positive punishment adds an unpleasant stimulus; negative punishment removes a pleasant one (taking away a phone).
- Schedules of reinforcement affect how persistent a behaviour is. Skinner found that intermittent (partial) reinforcement, especially variable-ratio schedules, produces behaviour that is highly resistant to extinction, which helps explain gambling.
The key distinction from classical conditioning is that operant behaviour is voluntary and emitted, then shaped by its consequences, rather than reflexively elicited.
Observational learning
Observational (social) learning is learning by watching others, without direct reinforcement.
- Bandura (1961), the Bobo doll experiment. Children who watched an adult model behave aggressively toward an inflatable Bobo doll later imitated that aggression, including novel acts, while children who saw a non-aggressive model did not. A follow-up showed that seeing the model rewarded or punished (vicarious reinforcement) changed how much children imitated. Bandura identified four processes: attention, retention, reproduction and motivation.
This theory bridges behaviourism and cognition, because learning can occur through observation and mental representation without the learner performing or being reinforced at all.
In Bandura's Bobo doll study, children imitated specific aggressive acts they had only watched, including novel behaviours never modelled before for them to copy directly. This demonstrated that learning can occur purely through observation and mental representation, not just direct reinforcement.
How fear is learnt
Fear is a useful integrating example. It can be acquired by classical conditioning (Little Albert), maintained by operant conditioning (avoiding the feared object is negatively reinforced because it reduces anxiety) and acquired vicariously by observational learning (a child who watches a parent react fearfully to spiders may learn the same fear). This explains why phobias are both learnt and persistent.
Putting it together for an exam
Identify which theory the question targets, define its mechanism, then apply a named study. If asked about phobias, integrate all three: classical acquisition, operant maintenance and observational transmission.
- Confusing negative reinforcement with punishment
- Negative reinforcement removes something unpleasant to increase a behaviour; punishment decreases a behaviour.
- Mixing up the conditioning terms
- Before conditioning the stimulus is neutral; after conditioning it is the conditioned stimulus and the response is the conditioned response.
- Saying observational learning requires reinforcement of the learner
- Bandura showed learning can occur with no direct reinforcement at all.
- Treating classical and operant conditioning as the same
- Classical involves involuntary reflex responses to stimuli; operant involves voluntary behaviour shaped by consequences.
Exam-style questions
Questions in the style of QCAA exam questions on this dot point, each with a worked answer. They are written by ExamExplained unless tagged "Past paper"; the year shows the paper a question is modelled on.
Practice3 marksDescribe the learned fear response and identify the conditioned and unconditioned stimuli in Watson and Rayner's (1920) 'Little Albert' experiment.Show worked answer →
Description of learned fear (1 mark): a learned fear response is a fear (a conditioned emotional response) acquired through classical conditioning, when a neutral stimulus is repeatedly paired with a stimulus that naturally produces fear until the neutral stimulus alone triggers the fear.
Unconditioned stimulus (1 mark): the loud noise (a steel bar struck with a hammer), which naturally produced fear and crying in Albert without any learning.
Conditioned stimulus (1 mark): the white rat, originally a neutral stimulus, which after repeated pairing with the loud noise came to trigger fear on its own.
Practice5 marksa) Describe what is meant by an unconditioned response in classical conditioning and provide an example. [2 marks] b) Distinguish between stimulus generalisation and stimulus discrimination in classical conditioning, providing an example of each from Pavlov's (1897/1902) research. [3 marks]
Show worked answer →
a) An unconditioned response (UCR) is a natural, reflexive, unlearned reaction automatically produced by an unconditioned stimulus (1 mark). Example: a dog salivating (UCR) when food (UCS) is placed in its mouth (1 mark).
b) Distinction (1 mark): stimulus generalisation is responding to stimuli similar to the conditioned stimulus, whereas stimulus discrimination is responding only to the specific conditioned stimulus and not to similar ones.
Generalisation example (1 mark): a dog conditioned to salivate to one tone also salivates to tones of a similar pitch.
Discrimination example (1 mark): the dog learns to salivate only to the original tone (paired with food) and not to a clearly different tone that was never paired with food.
Practice7 marksa) Provide an example of stimulus generalisation in operant conditioning. [1 mark] b) Explain the use of negative reinforcement, positive reinforcement and punishment in operant conditioning. Provide one example of each. [6 marks]
Show worked answer →
a) (1 mark) A child praised for saying 'please' to a parent also says 'please' to teachers and other adults, generalising the reinforced response to similar situations.
b) Two marks each (concept plus example):
Positive reinforcement adds a pleasant stimulus after a behaviour, increasing it. Example: giving a dog a treat after it sits makes sitting more likely.
Negative reinforcement removes an unpleasant stimulus after a behaviour, increasing it. Example: a rat presses a lever to switch off an electric shock, so lever-pressing increases.
Punishment follows a behaviour with a consequence that decreases it. Example: losing phone privileges after breaking a rule makes rule-breaking less likely.