One of the Most Difficult Problems for Any Teacher Is

Multiple Choice

One of the most difficult problems for any teacher is a child who consistently disrupts class. Researchers have shown that giving attention in the form of scolding to a disruptive child actually increases the child's misbehavior. In the terms of operant conditioning, the scolding is a

A) punisher.
B) penalty.
C) positive reinforcer.
D) negative reinforcer.