“…Desforges, Lord, Ramsey, Mason, Van Leeuwen, West, & Lepper, 1991;Desforges, Lord, Pugh, & Sia, 1997;Hewstone & Brown, 1986;Van Oudenhoven, Groenewoud, & Hewstone, 1996;Wilder, 1984), others have only found speci®c attitude change without a corresponding generalization effect (e.g. Blaney, Stephan, Rosen®eld, Aronson, & Sikes, 1977;Johnson & Johnson, 1981;Slavin, 1979). Studies that measure attitudes toward the out-group as an abstract social category often fail to obtain any generalization effect (Bond, DiCandia, & MacKinnon, 1988;Wilder & Thompson, 1980;Weigel, Wiser, & Cook, 1975).…”