Answer:
Cognitive dissonance
Explanation:
In psychology, the term cognitive dissonance refers to the mental discomfort experienced by a person who holds contradictory beliefs, ideas, or values.
This discomfort is triggered by a situation in which a person's belief is contradicted by new evidence perceived by the person so the person will try to find a way to resolve the contradiction to reduce their discomfort.
In this example, Sonya thought sororities were filled with snobs, however during her first week in campus she was approached by a sorority member who invited her to a social function.
We can see that <u>Sonya's beliefs about sororities were contradicted by the new evidence she perceived when she attended the social function</u>, this made her feel cognitive dissonance and <u>her way to resolve the contradiction was to conclude that sororities do a lot of good things for the community.</u>
Thus, Sonya's change in attitude to match her behavior relates to cognitive dissonance.