Exaggerating differences back and forth: Two levels of intergroup accentuation.

Area of Science:

• Social Psychology
• Cognitive Psychology

Background:

• Social perceivers often exaggerate differences between groups, a phenomenon termed intergroup accentuation.
• Existing research suggests intergroup accentuation impacts stereotype formation and intergroup relations.

Purpose of the Study:

• To investigate if intergroup accentuation originates during the initial learning of novel group information.
• To examine the temporal dynamics of accentuation, specifically whether it occurs for groups encountered first or second.

Main Methods:

• Two preregistered experiments were conducted using fictitious social groups.
• Participants learned about two groups that probabilistically differed on two dimensional traits.
• Intergroup accentuation was measured by assessing the exaggeration of differences between groups.

Main Results:

• Participants exaggerated differences between the fictitious groups, confirming intergroup accentuation.
• Accentuation was significantly stronger for the group encountered second, supporting the hypothesis that learning order matters.
• Accentuation was also observed for the group encountered first, indicating a 'backward' effect even with unbiased initial learning.

Conclusions:

• Intergroup accentuation is partly rooted in the processes of acquiring information about novel groups.
• The order in which groups are encountered influences the degree of accentuation, with second-encountered groups showing stronger effects.
• Findings have implications for understanding stereotype polarization, particularly for social minorities and out-groups often encountered later.