When punishment is applied after every instance of an unwanted target behavior, it is generally more effective

Operant conditioning by Burrhus Frederick Skinner, showed that people learn to behave in certain ways because of reinforcement. This a product of a psychology school of thought, behaviorism, which comes in the notion that whatever a person behave is what matters instead of his mind, pioneered by John B. Watson. If a person wants to retain the behavior, then he will do positive reinforcements example, positive stroking. If the behavior is undesired and needs to be exterminated, then a punishment will be instilled. This is more effective if the child understands the purpose behind the punishment