Following a review of his previous research findings, the author discusses results obtaining from asking 154 native white, non-Jewish students to define 5 religious and 5 political-economic concepts. The group had been divided previously into 4 equal prejudice quartiles on the basis of the Levinson Ethnocentrism Scale. It was found that subjects falling within the lowest prejudice quartile gave definitions that were somewhat more abstract, reified, and less concrete than did the subjects falling within the other 3 quartiles. There was a significant negative relationship between prejudice and intelligence, as measured by the A.C.E. 30 references. (PsycINFO Database Record (c) 2006 APA, all rights reserved)