A grandmother gives her grandchild a cookie because the child cleaned her room. What is the cookie in this example?

A) punisher
B) positive reinforcer
C) negative reinforcer
D) conditioned response

Positive Reinforcer

A stimulus that, when presented after a behavior, increases the likelihood of that behavior occurring again.

Punisher

A stimulus or event that follows a behavior and decreases the likelihood of that behavior occurring in the future.

Conditioned Response

In behavioral psychology, the learned response to a previously neutral stimulus that has become conditioned.