Answer:
Peer pressure
Step-by-step explanation:
In psychology, peer pressure refers to the influence on people by their peers.It also refers to the effect on an individual who gets encouraged to follow their peers by changing their behaviors to conform to those of the influencing group.
In other words, it is when peers pressure you to act in a certain way either on a direct way or an indirect way.
In this example, Callie called Sue to see if she wanted to go to the movies. Sue told Callie that she was going to study for their test. Then, Callie decided to study instead of go to the movies. We can see that Callie was influenced to not go to the movies after hearing Sue was going to study for their test and therefore, she changed her behavior to conform to that of Sue. Therefore, this is an example of peer pressure.