Across seven preregistered studies in online adult volunteer samples (N = 5,323), we measured implicit evaluations of social groups following exposure to historical narratives about their oppression. Although the valence of such information is highly negative and its interpretation was left up to participants, implicit evaluations of oppressed groups shifted toward positivity, including in designs involving fictitious, well-known, and even self-relevant targets. The sole deviation from this pattern was observed in an experiment using a vignette about slavery in the United States, in response to which neither White nor Black Americans exhibited any change in implicit race attitudes. In line with propositional perspectives, these findings suggest that implicit evaluations (including, notably, implicit evaluations of well-known and self-relevant social groups) tend to change toward positivity in response to extremely negative information involving past oppression. However, macro-level phenomena, such as public awareness of histories of oppression, can modulate such updating processes.
Keywords: Implicit Association Test; attitude change; implicit evaluations; intergroup relations; open data; open materials; oppression; preregistered.