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Disconfirmed expectancy

Psychological term for what is commonly known as a failed prophecy

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Initial study

Disconfirmed expectancy was famously illustrated in the 1956 book When Prophecy Fails by Leon Festinger, Henry W. Riecken, and Stanley Schachter. The book gave an inside account of a doomsday cult led by Dorothy Martin (given the alias "Marion Keech" to preserve her privacy), of Chicago. Martin claimed to have received messages from aliens forecasting a flood that would end the world on December 21, 1954. Festinger and his researchers took the chance to pretend to be a part of the cult in order to observe its behaviors and reaction when the flood failed to occur. Furthermore, Festinger's theory of cognitive dissonance, which would be published the following year, predicted that the failure of the prophecy would not break the cult. Instead the group members would look for ways to justify their actions and maintain confidence in the cult.

Some members abandoned the group when the prophecy failed to be fulfilled, but most stayed. Those who stayed did not have weakened resolve. There was in fact an increase in their proselytization and their fervor for the new religion. The prediction of the Earth's destruction became a disconfirmed expectancy which resulted in the dissonant cognitions "the world is going to end" and "the world did not end". Those who left the cult accepted that they were wrong and discarded their false cognition. Those who stayed instead looked for ways to explain the event in a way that would maintain their beliefs. Eventually they came to the agreement that the planet was spared because of their prayers and actions. Festinger et al. theorized that five conditions must be present for this to occur; that is, there are five conditions that must be met such that a disconfirmation can lead to increased strength of belief: strong belief, commitment to the belief, the possibility that the belief is false, recognition of the disconfirmation, and strong social support (these are detailed below).

Conditions for attitude change

In When Prophecy Fails the authors describe five conditions under which disconfirmation of a belief may lead to increased fervor in a believer:

  1. A belief must be held with conviction
    The believer must behave in a manner consistent with this belief
  2. The believer must be committed to the belief
    This is apparent when the person holding the belief commits to some action(s) that is difficult to undo, such as selling all of one's possessions or participating in an illegal lifestyle, as with the traditionally polygamist Fundamentalist Church of Jesus Christ of Latter-Day Saints
  3. The belief must be falsifiable
    That is, the belief must be specific enough that a real-world event could disconfirm it
  4. Contradictory evidence must be presented to and recognized by the believer
    The belief must be unequivocally disconfirmed to the believer
  5. The individual believer must have social support

The fifth condition is especially important as it states the specific circumstance under which the belief can continue after disconfirmation. Points one and two are necessary conditions that are likely to influence the believer to be resistant to changing the belief. Points three and four are the factors that indicate the belief is flawed and should be absolutely discarded. Thus, the believer is subject to a large amount of cognitive dissonance: "I believe something that is not true." In the absence of adequate social support, it is likely that the belief will be discarded to alleviate this pressure.

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