One interpretation of the results of Festinger and Carlsmith's (1959) classic experiment is that participants in the $1 group changed their attitudes because of which of the following?

Question

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Festinger and Carlsmith's study found that participants who were paid $1 had insufficient external justification to justify lying about the task being boring, therefore, they had to change their attitudes to reduce the cognitive dissonance they felt between lying and their own beliefs. Participants in the $20 group had sufficient external justification for lying, so they did not experience cognitive dissonance, and therefore did not change their attitudes as a result of the experiment. Options A, B, and D are not supported by the results of the study.

One Interpretation of the Results of Festinger and Carlsmith's (1959)