Ryan drove the family car when he went out with his high school friends on weekends. He started coming home late (after his curfew). The next time he came home late, his parents did not let him drive the car for a week. As a result, he quit coming home late. This is an example of.

Negative punishment.

Explanation:

As explained by  B. F. Skinner's theory of operant conditioning,  all behaviors and responses of an organism produces when subjected to reinforcer and punishment. He explained that rewards motivate the repetition of behavior while punishment minimizes the frequency of a particular behavior. As per the question Ryan's response was dealt with punishment and therefore decreases its likelihood in the future.

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