In an investigation of differences in conditioning performance between anxiety neurotics and neurotics in other diagnostic categories, and between neurotics and psychotics, it was found that anxiety neurotics and other neurotics did not differ significantly. The psychotic group, as compared to the total neurotic group, was found to be superior between the .05 and .10 level of confidence. Speculations concerning these results were offered. 19 references. (PsycINFO Database Record (c) 2006 APA, all rights reserved)