Linking superiority bias in the interpersonal and intergroup domains

Area of Science:

• Social Psychology
• Intergroup Relations
• Social Identity Theory

Background:

• Superiority bias, the tendency to perceive oneself or one's group as better than others, is well-documented in both interpersonal and intergroup contexts.
• Social identity theory posits that self-concept is composed of personal identity and social identities, and individuals are motivated to maintain a positive self-view at both levels.

Purpose of the Study:

• To investigate the relationship between interpersonal superiority bias (self vs. other students) and intergroup superiority bias (own nationality vs. other nationalities).
• To examine whether these biases are linked and to what extent they explain variance in perceptions.

Main Methods:

• Two studies were conducted with Australian university students.
• Participants rated the applicability of personality traits to themselves versus other students (interpersonal bias).
• Participants then rated the applicability of the same traits to Australians versus people from other countries (intergroup bias).

Main Results:

• A significant positive correlation was found between interpersonal and intergroup superiority biases.
• Interpersonal superiority bias explained 22.1% of the variance in intergroup superiority bias in Study 1.
• Interpersonal superiority bias explained 33.6% of the variance in intergroup superiority bias in Study 2.

Conclusions:

• The findings support social identity theory by demonstrating a link between positive self-perceptions at the personal and group levels.
• Individuals who view themselves as superior to peers are also more likely to view their national group as superior to other nationalities.
• This suggests a generalized tendency towards positive self-evaluation extending from the personal to the collective self.