Social categorization and the truly false consensus effect.

[Correction Notice: An erratum for this article was reported in Vol 65(6) of Journal of Personality and Social Psychology (see record 2008-10490-001). In this article, the second and third column headings of Table 2 were inadvertently transposed. The corrected table is provided in the erratum.] The false consensus effect involves adequate inductive reasoning and egocentric biases. To detect truly false consensus effects (TFCEs), item endorsements were correlated with the differences between estimated and actual consensus within Ss. In Exp 1, Ss overgeneralized from themselves to gender in-groups and to the overall population, but not to gender out-groups. Exps 2 and 3 demonstrated intuitive understanding of consensus bias. Another person's choices were inferred from that person's population estimates or estimates about the gender in-group. In Exp 4, Ss inferred that consensus estimates for a behavior were higher among people who were willing to engage in that behavior than among those who were not. Implications of these findings for general induction, social categorization, and the psychological processes underlying TFCEs are discussed. [A correction concerning this article appears in Journal of Personality and Social Psychology, 1993, Vol 65(6), 1090. The second and third column headings of Table 2 were inadvertently transposed and the corrected table is included.] (PsycINFO Database Record (c) 2010 APA, all rights reserved)