Answer: ethnocentrism
Explanation:
Ethnocentrism occurs when one thinks his ethnic group, religion, norms, nationality or culture is better than that of the other person because of the differences that exist between the two.
One may think his is better because of personal constructed views of what is better and of what is not .
She probably has an idea that the best behaviour can only be found in students of America because she is an American .
As a result she is asking for a behavioural change based on that view she may have that the best behaviour can be found in American students as an American herself.