The authors explored how negative intergroup comparisons affect intergroup differentiation. More specifically, they tested the prediction that the in-group's negative intergroup comparisons with a high-status group would result in more negative stereotyping of a lower status out-group. The authors elicited stereotypes of a lower status university in 2 conditions. In the Ist, the participants judged only the middle-ranking university in-group and a lower status university. In the 2nd, those judgments followed comparison with a higher status university. In the 2nd condition, there was an increased differentiation between the in-group and the lower status out-group because of the more negative stereotyping of the lower status out-group. This evidence of intergroup differentiation was found only on the dimension judged most important and along which the ingroup was negatively compared with the higher status group.