Which process involves observing a model being punished and then becoming less likely to imitate the model's behavior?

Answer: Vicarious punishment

Explanation:

Vicarious punishment is known to be the extent to which a model keep or stay away from the behaviors which makes another model to be punished. This is due to observing the negative effects experienced by the model that carried out the behavior. Thus, it is an observational learning because models learn from what they see. For example, a model will not drive recklessly after witnessing another model drove recklessly and lost control which led to his untimely death on the highway.