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Operant Conditioning in AP Psychology learning through consequences.

Operant conditioning is learning in which behavior is shaped by its consequences, reinforcement and punishment. This operant conditioning AP Psychology guide lays out reinforcement, punishment, and schedules with clear examples.

Updated June 2026Part of AP Psychology Definitions

What is operant conditioning?

Operant conditioning is a type of learning in which the strength of a voluntary behavior changes through reinforcement or punishment. B. F. Skinner developed the framework, building on the law of effect from Edward Thorndike, which states that behaviors followed by satisfying results tend to be repeated.

Reinforcement and punishment

Positive reinforcement
Adding a pleasant stimulus to increase a behavior, such as a treat for sitting.
Negative reinforcement
Removing an unpleasant stimulus to increase a behavior, such as taking aspirin to end a headache.
Positive punishment
Adding an unpleasant stimulus to decrease a behavior, such as a speeding ticket.
Negative punishment
Removing a pleasant stimulus to decrease a behavior, such as taking away a phone.

Schedules of reinforcement

Continuous reinforcement teaches a behavior quickly, but it also fades quickly once rewards stop. Partial schedules build more durable behavior. The four partial schedules are fixed-ratio, variable-ratio, fixed-interval, and variable-interval. A variable-ratio schedule, like a slot machine, produces the highest and most persistent response rate.

How AP Psych tests operant conditioning

The biggest trap is positive versus negative. Positive means a stimulus is added, and negative means a stimulus is removed. Reinforcement always increases a behavior, and punishment always decreases it. Vignettes give a scenario and ask for the exact term. Keep operant conditioning, where consequences shape voluntary behavior, separate from classical conditioning, where two stimuli become associated.

Frequently asked questions

Quick answers — written by humans, not a chatbot.

What is the difference between negative reinforcement and punishment?

Negative reinforcement removes something unpleasant in order to increase a behavior. Punishment decreases a behavior. The word negative only signals that a stimulus is removed, not that the consequence is bad.

Who is associated with operant conditioning?

B. F. Skinner is the central figure, building on the law of effect from Edward Thorndike. The AP exam often references Skinner boxes and schedules of reinforcement.

How is operant conditioning different from classical conditioning?

Classical conditioning links two stimuli so that one triggers a reflexive response, as in Pavlovian conditioning. Operant conditioning shapes voluntary behavior through its consequences. Consequences are the signal that you are dealing with operant conditioning.

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