Theory and Research
Cognitive dissonance theory explains changes in people's attitudes or beliefs as the result of an attempt to reduce a dissonance (discrepancy) between contradicting ideas or cognitions. In the case of effort justification, there is a dissonance between the amount of effort exerted into achieving a goal or completing a task (high effort equalling high "cost") and the subjective reward for that effort (lower than was expected for such an effort). By adjusting and increasing one's attitude or subjective value of the goal, this dissonance is resolved.
One of the first and most classic examples of effort justification is Aronson and Mills's study. A group of young women who volunteered to join a discussion group on the topic of the psychology of sex were asked to do a small reading test to make sure they were not too embarrassed to talk about sexual-related topics with others. The mild-embarrassment condition subjects were asked to read aloud a list of sex-related words such as prostitute or virgin. The severe-embarrassment condition subjects were asked to read aloud a list of highly sexual words (e.g. fuck, cock) and to read two vivid descriptions of sexual activity taken from contemporary novels. All subjects then listened to a recording of a discussion about sexual behavior in animals which was dull and unappealing. When asked to rate the group and its members, control and mild-embarrassment groups did not differ, but the severe-embarrassment group's ratings were significantly higher. This group, whose initiation process was more difficult (embarrassment equalling effort), had to increase their subjective value of the discussion group to resolve the dissonance.
Read more about this topic: Effort Justification
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