The third-person effect is a social sciences hypothesis that suggests people tend to believe mass media messages have a greater impact on others than on themselves. This phenomenon is rooted in personal biases, leading individuals to overestimate the effect of a mass-communicated message on the "generalized other" while simultaneously underestimating its effect on themselves. This perception is particularly noticeable when the message is seen as undesirable,
such as violent television content or misogynistic rap lyrics. The effect highlights a common human tendency to view oneself as less susceptible to media influence compared to the broader population.
Understanding the Perceptual Component
The core of the third-person effect lies in its perceptual component, which has received substantial support in research. This component describes the actual perception that media messages affect others more than oneself. For instance, in a 1997 study by Douglas McLeod et al., participants were asked to estimate the effects of violent or misogynistic rap music lyrics. Students in the study considered these lyrics to be least influential on themselves, but more influential on groups like youths in New York or Los Angeles. This illustrates the consistent finding that people are more likely to assume others are more easily swayed by messages than they are personally.
Further informal surveys conducted by W. Phillips Davison in 1983, who first articulated the hypothesis, also supported this perceptual component. These surveys, involving 25 to 35 participants each, asked individuals to estimate the influence of persuasive communication on themselves versus others. Participants consistently estimated that others were more influenced by campaign themes, television advertising on children, results of early presidential primaries, and campaign messages than they were personally. These findings, though informal, provided early evidence for the hypothesis.
Factors Influencing the Third-Person Effect
Two primary factors facilitate the third-person effect: judgments of message desirability and perceived social distance. Message desirability is considered the most important moderator. When a message is perceived as undesirable, such as content that is antisocial like television violence or pornography, the third-person effect is particularly pronounced. People tend to infer that "this message may not be so good for me" or "it's not cool to admit you're influenced by this media program," leading to a greater perceived impact on others.
Conversely, when messages are perceived as desirable, the third-person effect is less likely to occur. In such cases, a "first-person effect," or reversed third-person effect, is more common. This happens when agreement with the message reflects positively on the self, or when the message aligns with the orientation of groups with which individuals identify. For example, undergraduates might perceive that others are more influenced by cigarette ads, but they themselves are more affected by anti-tobacco and drunk-driving public service announcements, demonstrating a self-enhancement view where people acknowledge effects for communications deemed socially desirable or good for them.
The Role of Social Distance
Perceived social distance between oneself and comparison others also influences the magnitude of the third-person effect. This is known as the "social distance corollary." As the perceived distance between the self and others increases, the disparity in perceived influence also tends to increase. This means people are more likely to think that someone will have a similar response to themselves if they share characteristics like where they live, political affiliations, or age. However, if the comparison group is more distant or undefined, the third-person effect becomes larger.
Research consistently shows that others who are anchored to the self as a point of reference are perceived to be less influenced by persuasive messages than others who are not defined and therefore not anchored to any point of reference at all. While social distance is not a necessary condition for the third-person effect to occur, increasing this distance amplifies the effect. This suggests that the more "different" we perceive others to be from ourselves, the more we believe they are susceptible to media's influence, while maintaining a belief in our own relative immunity.
Psychological Underpinnings
The psychological foundations of the third-person effect are often attributed to either attribution theory or biased optimism. Attribution theory suggests that individuals tend to attribute their own actions to situational factors, while attributing the same actions of others to dispositional factors. In the context of media influence, this means a person might believe they understand the persuasive aspects of a message due to their own critical thinking, while others' perceived "dispositional flaws" prevent them from seeing those same aspects, making them more vulnerable.
Biased optimism, on the other hand, predicts that people tend to judge themselves as less likely than others to experience negative consequences and more likely to experience positive events. Applied to the third-person effect, this means individuals judge themselves as less likely to be affected by persuasion compared to others. Both theories offer explanations for why people maintain a belief in their own resilience to media influence while perceiving others as more susceptible.
