The Kohs ethical discrimination test sharply differentiates between normal and epileptic subjects when they are paired for educational status and chronological age. The epileptic group as a whole make very low scores. There is a strong intimation that grand mal epilepsy impairs the moral judgment to a large degree. Epileptics have little ability in abstract reasoning, and tests of common sense elicit grossly inadequate responses. The Kohs test appears to be a measure of abstract intelligence as well as a test of ethical discrimination. If that assumption be true, the epileptic group may have had a double handicap in the test, being deficient both in general intelligence and in ethical discrimination. (PsycINFO Database Record (c) 2006 APA, all rights reserved)