When everyone in her class said that they liked to dance, jill reported liking to dance, too, even though she dislikes dancing. the way that jill changed her attitude about dancing so that her opinion matched that of her classmates is an example of?

The answer is conformity. This is a kind of social impact including an adjustment in conviction or conduct keeping in mind the end goal to fit in with a gathering. This change is because of genuine (including the physical nearness of others) or envisioned (including the weight of social standards/desires) group pressure.