If Jack takes away his son’s video game after his son misbehaves, what technique is Jack using to modify his son’s behavior?

Negative punishment

Explanation:

Negative punishment is a concept that is being used in Skinner's ope-rant conditioning. It is an important concept that is being used to modify the behavior of an animal or human beings.

The main goal of punishment in ope-rant conditioning is to decrease the unwanted behavior of a person or animal. In this phenomenon, something has been deducting that is favorite of a subject to produce a positive behavior in a person or animal.

We can remember these phenomena by a trick like positive when we add something but negative is to deduct something. This phenomenon is most effective when it immediately follows a response. It should apply consistently to get a good response.

Thus in the above context when Jack takes away the video game from his son due to he misbehaves, Jack used the negative punishment.