Research directly examining and testing the effort heuristic is scarce, however there are other research areas that incorporated this construct and, in some way, manipulated its effects. However, a key distinction between the study done by Kruger et al. and other research on the role of effort on judgment is that the former focused on other-generated effort rather than self-generated effort.
Cognitive dissonance Effort justification Over half a century ago, social psychologist
Leon Festinger developed the theory of
cognitive dissonance. It asserts that inconsistencies among a person's beliefs, attitudes, or opinions produce psychological discomfort, leading people to rationalize their behavior or change their attitudes. where college students underwent a "severe" or a "mild" initiation to join a discussion group. Subjects in the severe initiation group were required to read a sexually explicit passage out loud in front of the experimenter, whereas those in the mild initiation group read a less embarrassing passage. When subjects were asked to evaluate the discussion group, those in the severe initiation condition rated it higher than those in the mild initiation group. Aronson and Mills interpreted their result in terms of cognitive dissonance. According to Aronson and Mills, to resolve the dissonance produced by reading the embarrassing passage, subjects in the severe initiation group gave more value to the discussion group than did subjects in the mild initiation group. This pattern of thought unfolds because people are engaged in normal efforts to better understand their own behaviors. Bem suggested that all individuals analyze their own behavior as much as an outside observer might and, as a result of these observations, people make judgments about why they are motivated to do what they do. He originally believed that most findings explained by cognitive dissonance were really due to self-perception. However, studies have shown that self-perception is primarily at work when subjects do not have well-defined attitudes regarding the issue at hand. ==Applications==