Significant differences between the groups studied appear on the basis of the average family income, order of birth in the family, religious origins, religious observations, intelligence test scores, the personality trait of ascendance-submission, the traits measured by the Laird C test, "wrong" answers on the Woodworth P.D. sheet, and Kent-Rosanoff scores. In the groups there are sex differences, with women more conservative and men more liberal and radical; family income differences, with conservatives and reactionaries more prosperous than liberals and radicals; differences in order of birth in the family, with radicals, atypicals and reactionaries better represented by only children, liberals coming more from oldest children, and the youngest children contributing more conservatives and typicals. In the political parties, the reactionaries and conservatives are dominantly republican; the liberals split between democratic, socialist, and non-partisan; the radicals report themselves as socialists or non-partisan. Differences in religious origins and cultural differences are reflected in the dominance of Christians among the reactionaries and conservatives and the dominance of Jews among the liberals and radicals. On intelligence tests the reactionaries and conservatives make the poorest showing, while the liberals and radicals make the best. A copy of the opinion test used is included. (PsycINFO Database Record (c) 2006 APA, all rights reserved)