Written by Pam MS, NCSP | Fact checked by Psychology Dictionary staff 

Henri Tajfel's concept that points out a tendency to over-emphasize the differences between things belonging to different categories, and likewise, amplify similarities between things within the same categories.

ACCENTUATION THEORY: "The accentuation theory postulates an idea that people have a propensity to embellish similarities or dissimilarities between objects, such an occurrence that is commonly seen in scientific studies."

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