Before jackie left for college, she told her friend lisa that she thought sororities were filled with snobs and that she would never consider joining one. but during jackie's first week on campus, she was approached by a sorority member who invited her to a social function and encouraged her to pledge. after jackie attended the party, she told lisa, "sororities do a lot of good things for the community. they're really service organizations." jackie's change in attitude to match her behavior reflects which of the following concepts?

Cognitive dissonance                                                                                  

Explanation:

Cognitive dissonance: In psychology, the term cognitive dissonance is referred to as the phenomenon in which an individual feels discomfort due to the mismatch between his or her beliefs and behavior or when he or she encounters a piece of new information.

In other words, it involves conflicting beliefs, behaviors, or attitudes that an individual holds.

Factors that lead to cognitive dissonance include personal cognitions, disparity between belief and conflicting thoughts, etc.

In the question above, the statement signifies the concept of cognitive dissonance.