Abstract
Allport's The Nature of Prejudice is a social psychological classic. Its delineation of the components and principles of prejudice remains modern, especially its handling of cognitive factors. The volume's cognitive contentions are outlined, and then extended with an application from attribution theory. An "ultimate attribution error" is proposed: (1) when prejudiced peonle perceive what they regard as a negative act by an outgroup member, they will more than others attribute it dispositionally, often as genetically determined, in comparison to the same act by an ingroup member: (2) wlhen prejudiced people perceive what they regard as a positive act by an outaroup member, they will more than others attribute it in comparison to the same act by an ingroup member to one or more of the following: (a) "the exceptional case," (b) luck or special advantage, (c) hig,h motivation and effort, and (d) manipulable situational context. Predictions are advanced as to which of these responses will be adopted and under which conditions the phenomenon will be magnified.