Empirically estimating stereotype accuracy requires knowing groups’ actual trait distributions.

Evidence

In 1993 we published an article in the Psychological Review (Judd & Park, 1993) that defined the various ways in which beliefs about group differences may or may not be accurate. Additionally, we developed a research design called the full ingroup–outgroup accuracy design that permits an assessment of the accuracy of beliefs about group differences. In the following paragraphs, we review this approach, concentrating on the ways in which prejudice or outgroup hate may bias intergroup beliefs. — John F. Dovidio, Peter Glick, Laurie A. Rudman, On the Nature of Prejudice, 852

While the various forms of stereotype inaccuracies can be defined relatively easily, their estimation is fraught with difficulties. Two primary difficulties occur. The first and more major of the two concerns the assessment of the actual distributions of groups (both the between-group differences and the within-group variability) on attribute dimensions. How do we figure out what groups are really like on the relevant dimensions of judgment? — , Rudman, Laurie A - On the Nature of…, 866

Categorization

• DEFINE: Introduces the full ingroup-outgroup accuracy design as a research method for measuring stereotype accuracy.
• corroborated: 3 independent passages support this claim — John F. Dovidio, Peter Glick, Laurie A. Rudman, On the Nature of Prejudice: Fifty Years…, 852; , Rudman, Laurie A - On the Nature of…, 866