Answer:
Negative reinforcement.
Step-by-step explanation:
Reinforcement is a term that is commonly used in the area of Behavioral Psychology. Reinforcement can be simply defined as the act of trying to change, to reinforce a bad Behavior to a good one. There is positive reinforcement and negative reinforcement.
Positive reinforcement makes a bad Behavior to turn to a good behavior, while negative reinforcement at the end makes a bad Behavior still bad or even worse. An example if a negative reinforcement is that from the question. At the end of the spanking by the Father, Billy still use fowl language more frequently.