Individualized contact fails to generalize positive attitudes beyond the specific person
Evidence
Hewstone and Brown (1986) argued, in contrast, that by focusing solely on individuating information, the outgroup member would not be seen as an outgroup member at all, and thus any positive outcomes that result from the interaction would fail to generalize to other members of the category. In other words, they are likely to be subtyped, or cognitively processed as separate from the group as a whole, or treated as an individual with no connection to the overall group. — John F. Dovidio, Peter Glick, Laurie A. Rudman, On the Nature of Prejudice, 1808