Merging insights from the intergroup relations literature and terror management theory, the authors conducted an experiment in which they assessed the impact of death-related thoughts on a series of ingroup measures. Participants in the mortality salience condition displayed stronger ingroup identification, perceived greater ingroup entitativily, and scored higher on ingroup bias measures. Also, perceived ingroup entitativily as well as ingroup identification mediated the effect of the mortality salience manipulation on ingroup bias. The findings are discussed in relation to theories of intergroup relations and terror management theory. A new perspective on the function of group belonging also is presented.
Castano, E., Yzerbyt, V., Paladino, M.-P., & Sacchi, S. (2002). I belong, therefore, I exist: Ingroup identification, ingroup entitativity, and ingroup bias. Personality and Social Psychology Bulletin, 28(2), 135-143. https://doi.org/10.1177/0146167202282001 (Original work published 2002)