WHEN DO STEREOTYPES BECOME REALLY CONSENSUAL - INVESTIGATING THE GROUP-BASED DYNAMICS OF THE CONSENSUALIZATION PROCESS

Although it has long been recognized that stereotypes achieve much of their force from being shared by members of social groups, relatively little empirical work has examined the process by which such consensus is reached. This paper tests predictions derived from self-categoriza tion theory that stereotype consensus will be enhanced (a) by factors which make the shared social identity of perceivers salient and (b) by group interaction that is premised upon that shared identity. In Expe riment 1 (N = 40) the consensus of ingroup stereotypes is enhanced whe re an ingroup is judged after (rather than before) an outgroup. In Exp eriment 2 (N = 80) when only one group is judged, group interaction is shown to enhance the consensus of outgroup stereotypes more than thos e of the ingroup-an apparent 'outgroup consensus effect'. In Experimen t 3 (N = 135) this asymmetry is extinguished and group interaction fou nd to produce equally high consensus in both ingroup and outgroup ster eotypes when the ingroup is explicitly, contrasted from an outgroup. I mplications for alternative models of consensus development are discus sed. (C) 1998 John Wiley & Sons, Ltd.