Two central hypotheses of the original version of the theory of cognitive dissonance (Festinger, 1957)

In the present experiment subjects made a decision between two alternatives which was either reversible or irreversible. A per the choice, subjects evaluated the attractiveness of both alternatives once more under different time levels. It was found that with increasing time level, re-evaluation of alternatives increased under irreversible and decreased under reversible conditions. The results are discussed in the framework of dissonance theory.

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