“…Our results nicely confirm other research showing that the validity of a persuasive message is largely determined by the membership of its source and that people are more influenced by ingroup than by outgroup sources (Abrams & Hogg, 1990;Clark & Maass, 1988;David & Turner, 1996;Hogg & Turner, 1987;Mackie, 1986). Interestingly, if the results of Study 1 might be interpreted in terms of a surveillance effect (i.e., the tendency to tailor one's communication in order to avoid sanctions from the audience; Reicher & Levine, 1994a,b;Tetlock, Skitka, & Boettger, 1989), the results of Study 2 allow us to question such an interpretation as they clearly indicate that perceivers are sometimes ready to disagree with their prospective audience.…”