The focus of this paper is on groups of teachers classified according to self-reported national and/or racial heritage. The problem studied was simply notation of similarities and differences among mean scores of groups of in-service teachers in the U.S.A. when the teachers were so classified. Ss were over 3,000 in-service teachers from the 50 states. These teachers completed the Teachers Characteristics Schedule G-70/2, which makes available 11 scales relating to teacher behaviors, attitudes, educational viewpoints, cognitive responses, and personal social adjustment. Results are given in tabular form. It is concluded that group differences in mean scores on the scales do exist. (CK)