Final answer:
Amie is influenced by normative social influence from her peers; she conforms to avoid ridicule and be accepted by the group.
Step-by-step explanation:
The type of influence the other students have on Amie is normative social influence. This occurs when someone conforms to the group norm to fit in, feel good, and be accepted by the group, rather than because of a belief that the group is competent or has the correct information, which would be informational social influence.
In Amie's situation, she chooses to wear blue jeans, a T-shirt, and athletic shoes on non-uniform days to avoid being made fun of, which reflects her desire to conform to the group's expectations to avoid ridicule or disapproval, a hallmark of normative influence.