Final answer:
This situation is an example of ethnocentrism, where Ashley judges the exchange student's actions based on her own cultural norms.
Step-by-step explanation:
This situation is an example of ethnocentrism. Ethnocentrism is the belief that one's own culture is superior to others and judging other cultures based on one's own cultural norms. In this case, Ashley is judging the exchange student's action of taking a nap after school because she believes that it would be better for her to go to work like other 17-year-olds in the U.S.