Operant Conditioning
How do consequences influence whether behavior becomes more or less likely?
What happened to future behavior?
A student submits homework, receives praise, but submits homework less often the next week. Was the praise a reinforcer for submitting homework in this case? Explain.
How are consequences classified?
By the end of today
- Define reinforcement and punishment by behavioral effect.
- Distinguish positive from negative procedures.
- Use Antecedent → Behavior → Consequence analysis.
- Recognize that an apparent reward is not automatically a reinforcer.
- Evaluate ethical limits of behavior-change strategies.
negative reinforcement
Formal definition
A process in which removal or reduction of a stimulus following a behavior increases the future probability of that behavior.
Student-friendly definition
A behavior becomes more likely because something is removed afterward. “Negative” means removal—not punishment.
The consequence matrix
| Add something | Remove something | |
|---|---|---|
| Behavior increases | Positive reinforcement | Negative reinforcement |
| Behavior decreases | Positive punishment | Negative punishment |
Antecedent = event or condition before behavior. Behavior = observable action. Consequence = event following behavior that may affect future behavior.
Consequences are defined by function, not appearance
Operant conditioning studies how consequences relate to future behavior. Reinforcement and punishment are functional terms. A consequence is called reinforcement only when the target behavior increases. A consequence is called punishment only when the target behavior decreases.
Positive and negative describe whether something is added or removed. Positive reinforcement adds a consequence and behavior increases. Negative reinforcement removes or reduces a consequence and behavior increases. Positive punishment adds a consequence and behavior decreases. Negative punishment removes a consequence and behavior decreases.
The classic seat-belt example demonstrates negative reinforcement: fastening the belt stops an unpleasant warning sound. If fastening becomes more likely, removal of the sound reinforced the behavior.
Rewards and reinforcers are not identical. A teacher might give stickers because students appear to like them, but if the target behavior does not increase, the stickers did not function as reinforcement for that behavior under those conditions. Likewise, a consequence intended as punishment may accidentally reinforce behavior if it supplies attention or escape that increases future responding.
ABC analysis—Antecedent → Behavior → Consequence—helps organize observations. But it does not prove causation from one event. Baseline data, repeated measurements, comparison conditions, and alternative explanations strengthen conclusions.
Ethics matters. A behavior-change goal should be legitimate and transparent. Strategies should respect autonomy and dignity, avoid unnecessary fear or humiliation, consider disability and environmental barriers, teach constructive alternatives, and evaluate whether the intervention actually helps rather than merely suppressing visible behavior.
Seat-belt warning
Antecedent: car starts and warning tone sounds.
Behavior: driver fastens seat belt.
Consequence: warning tone stops.
If fastening becomes more likely, removal of the tone is negative reinforcement.
Reward claim audit
Incorrect. Whether the consequence functions as reinforcement depends on whether the target behavior increases. Preference may make reinforcement more plausible, but the behavioral effect defines the term.
Participation before and after feedback
| Session | Participation responses |
|---|---|
| Baseline 1 | 3 |
| Baseline 2 | 4 |
| Feedback 1 | 6 |
| Feedback 2 | 8 |
| Feedback 3 | 7 |
Behavior increased after feedback was introduced, but a simple before/after observation cannot by itself rule out other changes.
“Negative reinforcement means punishment.”
Verdict
Incorrect. Negative reinforcement removes something and behavior increases.
Memory rule
Ask two separate questions: Was something added or removed? Did future behavior increase or decrease?
ABC & consequence classification
Analyze at least six fictional examples. For each identify antecedent, behavior, consequence, whether something was added/removed, and whether future behavior increased/decreased.
Ethical behavior analysis
Analyze one fictional school or household routine using Antecedent → Behavior → Consequence. Propose one ethical modification. Include the target behavior, baseline measure, proposed consequence, predicted effect, autonomy/fairness check, one alternative explanation, and a constructive replacement behavior where relevant.