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Describe the concept of absolute threshold.
Secondary Reinforcer
A stimulus that has become rewarding through its association with a primary reinforcer.
Negative Reinforcer
An unpleasant or aversive stimulus that, when removed or avoided following a behavior, increases the likelihood of that behavior being repeated.
Positive Reinforcer
A stimulus which, when presented after a behavior, increases the likelihood of that behavior being repeated.
Positive Punisher
A stimulus that, when introduced after a behavior, decreases the likelihood of that behavior occurring again.
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